{
 "layers": [
  {
   "layerId": 0,
   "layerName": "DEM",
   "layerType": "Raster Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "856 ft - 133 ft",
     "url": "fcba1bd730950c7c7fe31a346a70172e",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAA8CAYAAABmdppWAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAlklEQVRYheWWsQ3AMAzDbFd2mqV/9v8D2ic4CEgOIChFg/Xm8wX4tCtJXug+D+jf4a5igUMbTroD+8TI8Gwk2FCCDbtpIG2IR/bvUDSw5oKBq1lg4oYjc2AO3GEtuMMQHJkHNtyhv2HaG544mx4YKNzQPjK/Q3vg4LO5WWBqscDoTQPpyDQQ/xR+hxd8OSQNjMJvG3PDH2K2BLktiGUnAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 60,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Value"
    }
   ]
  }
 ]
}