{
 "layers": [
  {
   "layerId": 0,
   "layerName": "CityLimit",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "5cf2cbfb9cbb295ce44481b9a51f0f29",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAYklEQVQ4je3UwQnAMAiFYREH60TiBqEbOFIns8UkFHJ+Hv0vuX2EBJ6o6kuFyT5vZn4QKCIuIhoTTMzdIdDMEl1gZdIgnODEWYN4UmAcNYg33zDHMfcMaQ/s/ykjx7HggvQBXJkbVf9hjwoAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  },
  {
   "layerId": 1,
   "layerName": "CityLimitMask",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "27679bbfb49998a03e8f5ad917b213ee",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQklEQVQ4jWP5//+/FgMDgyYDdcB1FqhhwVQycC3IQKoCllEDKQYslBuBCkYNpBywUMEMFDBq4EgJw+ugkpZK5l0HAEDSB/yE0Ex4AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}