{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Railroad",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "06abe620231cf0ca6aef49b927ed19f2",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAaElEQVQ4je3QsRGAIAyF4b9gksxAOksHYzA3IDO4CjbKHRagXgoLXpt3X3IJOCdMcIJtVFUAyTlvLiAgo0IFY4xpVC6lyNld7jMzSw3olQpeG3pR1RXA84cAe2/4Cuxd9gl8kgn+EDwATyYXSe+4zHsAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}