{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Railroads",
   "layerType": "Feature Layer",
   "minScale": 100000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "15ab9cb87cabe8489abfeec9a79a8bd1",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4jWNhoDJgGTVwJBl45syZ/yYmJoyENBBSx4KumBhXYFMHs4QFmyDVXEgNMIS8TIxhxKgbQgl71ECyAQCPZCGL+5eqwQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 1,
   "layerName": "Streams",
   "layerType": "Feature Layer",
   "minScale": 100000,
   "maxScale": 0,
   "legend": [
    {
     "label": "Intermittent",
     "url": "98fb05f0f718c61788b8f819c223d168",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4jWNhoDJgGTVw1MBBZWDMs2iGJVJLMdiEAJpahIHIBiAM/o/ToCVSjBj6GAh5GaaJBDCUImXUwOFrIADZzxE5EtY4rwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Intermittent"
     ]
    },
    {
     "label": "Perennial",
     "url": "50138b0f5dcca96612ebf5c4ce74546b",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAK0lEQVQ4jWNhoDJgGTVw1MDhbWDMs/8UmbREihHVQKgApWAoheGogcPXQABWZQQQIhO79AAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Perennial"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Streams"
    }
   ]
  },
  {
   "layerId": 2,
   "layerName": "Street Centerlines",
   "layerType": "Feature Layer",
   "minScale": 100000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "596e2e60aeee3e7751b7a2bbf10a8b95",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALElEQVQ4jWNhoDJgGTVw1MDha+C0Df+pYlpWACMLjEEVAxmGThiOGji8DQQAVQcEDOVLgKMAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 3,
   "layerName": "Trails",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "Boardwalk",
     "url": "c0f20f8fcbdc02cc15a9f89f70fb3242",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZGAxA8N/SgzqZWBgRDGQWgBuIMwGqhlILTBq4KiBZAAAXYAC3wfgBT0AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Boardwalk"
     ]
    },
    {
     "label": "Dirt Road",
     "url": "e9b7af5eac10dfeb607e38b5262e55e5",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAN0lEQVQ4jWNhoDJgGTVw1MDBZGAxA8N/fAp7GRgYkdVg49PWhTAbCLkSHx/FQGqBUQNHDSQDAABiygf7aPl4ggAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Dirt"
     ]
    },
    {
     "label": "Driveway",
     "url": "a33f1ee049ccb8c21e9c9a7d18f0f2f1",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAN0lEQVQ4jWNhoDJgGTVw1MDBZGBTU9N/fArr6uoYkdVg49PWhTAbCLkSHx/FQGqBUQNHDSQDAACdURDClzT28gAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Driveway"
     ]
    },
    {
     "label": "Paved Trail or Sidewalk",
     "url": "11fcdc752ba4fd54301422975c66881a",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4jWNhoDJgGTVw1EAKDGxqavpPiUF1dXWMKAbWBv7FUNS8nhmFj00NwkA0F1ILwA1Edw02QIwauIGwMKAUDKFkM2rg4DEQAFHuDf1kIsnpAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Paved",
      "Sidewalk"
     ]
    },
    {
     "label": "Walking Trail",
     "url": "738038d4eb2aa1ad538fa5bac3d0c8d9",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MDBZKBaMcN/XIpu9TIwEqtmCHkZ5mR8gBg1Q8jLowYOHgMBzGEJIefwdI8AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Walking"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Type"
    }
   ]
  },
  {
   "layerId": 4,
   "layerName": "Dock Lines",
   "layerType": "Feature Layer",
   "minScale": 10000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "02f8edbc460adc4b6a54fa6d7b4d14a0",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAL0lEQVQ4jWNhoDJgGTVw1MBha+C0dIb/1DAsayYDIwuMQQ0DGRiGTBiOGjjMDQQAEXMEVTcw5K0AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 5,
   "layerName": "Fences",
   "layerType": "Feature Layer",
   "minScale": 10000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "c173e8a9fbf6872e8cfacf5cf791add9",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALElEQVQ4jWNhoDJgGTVw1MDha2A/33+qmFb4iZEFxqCKgQxDJwxHDRzeBgIAAkYEtZzo3ycAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 6,
   "layerName": "Parking Lines",
   "layerType": "Feature Layer",
   "minScale": 10000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "f49d6c016f680358ed68bf4f04241209",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAL0lEQVQ4jWNhoDJgGTVw1MBha+D/////U8MwRkZGRhYYgxoGMjAMmTAcNXCYGwgAqQkEVUKiomAAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 7,
   "layerName": "Sports Field Lines",
   "layerType": "Feature Layer",
   "minScale": 10000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "f49d6c016f680358ed68bf4f04241209",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAL0lEQVQ4jWNhoDJgGTVw1MBha+D/////U8MwRkZGRhYYgxoGMjAMmTAcNXCYGwgAqQkEVUKiomAAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 8,
   "layerName": "Surface Water",
   "layerType": "Feature Layer",
   "minScale": 100000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "b1c189d0cc7054e5b9a07b2a8e8f1dd9",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAANUlEQVQ4jWNxSH39n4GKgIWBgYFh8VQRqhgWm/0GYiA1waiBowaOGjhq4KiBSAbGZr+hmoEANtsHlHxWluEAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 9,
   "layerName": "Beaches",
   "layerType": "Feature Layer",
   "minScale": 10000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "fdad65846af7e0b4522cc22adf8dd292",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAp0lEQVQ4jb1VwQ2EMAxzpMzAQDcEQzIEA3UJ34sqVHFbeuj8okowtklbZzmJF+EAYNvHeIC2w1RjrKtelpN+LWJD9kJcp2QHWBW26ClVsB3GAqaE2dczu5kTVwWleGTd28KIvOeiEmZqnhIPM1Sq/5bhzfIbGUrLK2QRlbBVNpObzDBTNpObnMOI1Qwl4a+2u3t5xbb8KasYnoezVm+DnV0DLOCT5wtfYhmOjVD1Mq8AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 10,
   "layerName": "Docks",
   "layerType": "Feature Layer",
   "minScale": 24000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "a3c4b09f0918a0451dbc8f844bae0221",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAANUlEQVQ4jWPJy8v7z0BFwMLAwMDQUuBLFcNqJmyGGEhNMGrgqIGjBo4aOGogkoE1EzZTzUAAfXUHWZSXVJEAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 11,
   "layerName": "Parking Lots",
   "layerType": "Feature Layer",
   "minScale": 24000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "4fbb721c97df40eb481aadfdf0f3f8f6",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALUlEQVQ4jWNpamr6z0AlUFdXx8hCLcNgYNTAUQNHDRw1cNRAWhlYV1fHSE0DAVwRBczNyGqfAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 12,
   "layerName": "Sports Fields",
   "layerType": "Feature Layer",
   "minScale": 24000,
   "maxScale": 0,
   "legend": [
    {
     "label": "Concrete",
     "url": "b53b0adbdea516badbe0a7a3ee53483a",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWN5+PDhfwYqAXl5eUYWahkGA6MGjho4auCogaMG0spAeXl5RmoaCABYugSvsGGSgAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Concrete"
     ]
    },
    {
     "label": "Dirt",
     "url": "0ba3623e61e93daf3077a697b2dd481d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAANUlEQVQ4jWP5////fwYqAhYGBgaG5zMZqWKYZPp/iIHUBKMGjho4auCogaMGIhkomU69WgAAOgEIzP0HiY4AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Dirt"
     ]
    },
    {
     "label": "Grass",
     "url": "4782aa16ee67f6870743551ffcc26270",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWMJ/c/wn4GKgIWBgYHh+3PqGMYpCTWQmmDUwFEDRw0cNXDUQCQDOSWpZyAAvA0ExuCEnagAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Grass"
     ]
    },
    {
     "label": "Green Clay",
     "url": "f8d7bd31f7ea41b7adcbbef1ad893f4e",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAANUlEQVQ4jWP5////fwYqAhYGBgaGks0lVDGsx7cHYiA1waiBowaOGjhq4KiBSAb2+PZQzUAAOpkIsrc1mDcAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Green Clay"
     ]
    },
    {
     "label": "Sand",
     "url": "610ed17eebaeafd5abb68dc2443e576f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAoUlEQVQ4jb2U0RGAIAxD+9GJ2IUZmIkZ3IWV8MODK1xDK3LmSy0+k4hyrbXSQTERUbkShZipXAkulHO0NsT8ABtUu1mbI1h3OGvlFKmlVIHa07W4WhJGA+TYis7zwIKvUnSg5uYt2OwQuf6twyHyiQ5h5B2YVAfOzjy9wQ41Z57e4D6U2u0QAr/GXn7LO7HhS9mV+T/0Rh02djuRktc8x003B0mlLaquzZIAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Sand"
     ]
    },
    {
     "label": "Turf",
     "url": "3c87514a2d3aa30de13559304f19e329",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWNZ/L/4PwOVQCxjLyMLtQyDgVEDRw0cNXDUwFEDaWVgLGMvIzUNBABaNAU9ln0KGwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Turf"
     ]
    },
    {
     "label": "Red Clay",
     "url": "1f848eb613cac0f6074bec4bdcbb2300",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAIklEQVQ4jWNZwcDwn4GKgIWaho0aOGrgqIGjBo4aOJQMBACA6QH47OhengAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Red Clay"
     ]
    },
    {
     "label": "Water",
     "url": "a1e6372209507ad3b1eb4470702994d3",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWP5////fwYqAhYGBgYGxpfUMey/ONRAaoJRA0cNHDVw1MBRA5EM/C9OPQMBPlEHY/EI/cwAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Water"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Surface"
    }
   ]
  },
  {
   "layerId": 13,
   "layerName": "Buildings",
   "layerType": "Feature Layer",
   "minScale": 30000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "4bcb6c908f4a68564c803a075d0be1a6",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAALklEQVQ4jWM5cuHxfwYqARsDWUYWahkGA6MGjho4auCogaMG0spAGwNZRmoaCABZXQTb99+SKAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 14,
   "layerName": "Open Space",
   "layerType": "Feature Layer",
   "minScale": 100000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "8352c1b1ada1ea2af60915509c91e2b3",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAANUlEQVQ4jWOJ6XT5z0BFwMLAwMBQXlZFFcM6u9ogBlITjBo4auCogaMGjhqIZGBnVxvVDAQArLQHEnfS8CIAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 15,
   "layerName": "Parcels",
   "layerType": "Feature Layer",
   "minScale": 30000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "66d15bf43ea9191a69fee186236e36e6",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAANElEQVQ4je3VMQ0AQAzDwLxUvAYTwv21ADLGAG71AKtgI0m2XwIDdhLQrWDBggULHjC5gQ94pgjjhvGdjAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 16,
   "layerName": "Villages",
   "layerType": "Feature Layer",
   "minScale": 100000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "7a261d7d9e42bf49f436c8c59b34ebd0",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAXElEQVQ4je3SsQmAQBAEwAEN7MZE7EI7sgRLsAETOzFRsBrB5HMffA3kF45Njom2lDhlBjP4Dlihx4EtBTijw4kW61OwCV2gTgEOGLFjuXuOAadwUfnHbDL4MXgBeMYKRCaN4V8AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 17,
   "layerName": "Massachusetts Towns",
   "layerType": "Feature Layer",
   "minScale": 500000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "21495c6a01add5718ec1dfea2779b0da",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAZUlEQVQ4je2VQQrAIAwEt5A3ziP3k/YkLQVFMUKhnVsMjGYPMSQVNbAtYLiWpKiNnnS0BhT1ADia1gFsF0kKoPvCWSLNtENo+8owA+DPcJGvZpgpBF4+8l5h3Wcpwucav10y/QWcKOk8Q+xgWV8AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}