{
 "layers": [
  {
   "layerId": 0,
   "layerName": "City Boundary",
   "layerType": "Feature Layer",
   "minScale": 500000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "2302fe9b1d60859d4378455a29db3a5b",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAcUlEQVQ4jd2UUQrAIAxDU8h1PKN4Rg/U0THByeYQO5jLl1R5QkJDAIpKmiMkpHrUnbdvWA7txZXu5kX24Q70FF8HSkgyAtAcTxnwyZdBOGhGekFlzVBmRc9QTK6hLOIhvgzUUl+93fzppshR7bP1b5ANKBAyNaWkr44AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}