{
 "layers": [
  {
   "layerId": 633,
   "layerName": "Billboards",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "54afc9742d23c8cbc89b6cfcff1092d8",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAk0lEQVQ4je3SwQ3DIAwF0G8pizBJ6UzhHrjTndxJGOX3kFQKUnHMsVL+EdtPlvCCi7TEDOIBABCUUEWt/sXEVhI8PRCxrUR4iUyDLTF2WF/LoUqe25DYLmqTIBCN2jBjUFCMLXUe3Id+g4IyDYYq2hKfx5bxBKl1OubZHIP6vcXRz7rBLoK3p80POnODN/hvoHqaPsBsMAs6ubMzAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}