{"layers": [
 {
  "layerType": "Feature Layer",
  "layerId": 0,
  "maxScale": 0,
  "legend": [{
   "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMUlEQVQ4je3MoREAMAwDsYDff2X3CoNtFmsAIUkTRDL7GvoIHEtDH4FjaegjcMzx8AE+XARNkewqsgAAAABJRU5ErkJggg==",
   "groupId": "0",
   "width": 20,
   "label": "",
   "contentType": "image/png",
   "url": "6252e2707d835ef46f239fd379c46a6c",
   "height": 20
  }],
  "legendGroups": [{
   "heading": "",
   "id": "0"
  }],
  "layerName": "caching_mask",
  "minScale": 0
 },
 {
  "layerType": "Raster Layer",
  "layerId": 85,
  "maxScale": 0,
  "legend": [{
   "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAA8CAYAAABmdppWAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAaUlEQVRYhe2WwQ3AMAwC/WCw7j8RUajUIcyDyr4BThCUKLj3PmUEkpy+WmEfkJxWWfFC7igDhNyVu2CFbcD4hK894TlmodLPUCvsghVOeL4qvrJ+IKRbqHG/L6bfFM0TVtkTVnxlL/krf5uEqzEZNYCfAAAAAElFTkSuQmCC",
   "groupId": "0",
   "width": 20,
   "label": "High : 254 - Low : 0",
   "contentType": "image/png",
   "url": "fd60db7de17b273ca61a39b8de60988f",
   "height": 60
  }],
  "legendGroups": [{
   "heading": "Value",
   "id": "0"
  }],
  "layerName": "hbs_hillshade",
  "minScale": 0
 }
]}