{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Signs",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "29f33cb4fc2f11911d3494f2eba24b12",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAhklEQVQ4je3RsRGDMAyF4b9gj6RnB+IlYB2ZdWAJyA7q7U0orKThOA5B6dfY0tnf6eyGh9NUsIIAREBsvwCjrS4wAMLwKZWmgOZgaPSAQvuCvitV38H8hWkVLxho3ydHroH7aIIbbzgyrYIm/pNqLn0nGIEFzWKf8cPcE2KXDwEPeCkVvJ8Nl/shJW7Fq8kAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}