{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Detailed Roads",
   "layerType": "Feature Layer",
   "minScale": 10000000,
   "maxScale": 100,
   "legend": [
    {
     "label": "",
     "url": "6f27379e5ec64e11b2b867a15ebb6d5f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAM0lEQVQ4jWNhoDJgGTVw1MDBZGBGRsZ/SgyaMWMGI4qB1AJwA2E2UM1AaoFRA0cNJAMAAGR+Bhp70M3MAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}