{
 "layers": [
  {
   "layerId": 4,
   "layerName": "Road",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "National Highway",
     "url": "925776ffa754084df4252b70454bebdb",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATElEQVQ4jWNhoDJgGTWQYsAyAg38H8LgwMDIUM/AwOBAoVkHGP4zNLJQyTAQADmMFmH4n6ERZDLVvMy4huEAmDNykg3DqIGUAqqHIQBHUQwTGnLlIQAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "National Highway"
     ]
    },
    {
     "label": "State Highway",
     "url": "16e1e4fc7a2c5453473f251b98be2d63",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAU0lEQVQ4jWNhoDJgGTWQYsAyQg183p3iQA3DJEvnHGABGcZjfX4/m8wzigz79UQK5DBH6ntZsnTOAZDJDAyG1PEyA5TBMLKSDTUBC1VNYxiRBgIALokVWVOvkVgAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "State Highway"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}