{"layers": [
 {
  "layerType": "Feature Layer",
  "layerId": 1,
  "maxScale": 0,
  "legend": [{
   "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAbUlEQVQ4je3VsQnAIBSE4RNuFAdxBsk+wYUyQwbJLoYrLGIRAveagH+nxYcIPrlllA7sHSgwSsCZgMYITA2DEdhIFhEc543j0nV8r2Yd7AV04wLt6BPPFvgHsE5v0wZhRk3aqJkoS2DTIuoLuAFBxBW9pFOBcgAAAABJRU5ErkJggg==",
   "groupId": "0",
   "width": 20,
   "label": "",
   "contentType": "image/png",
   "url": "65181ca090cd0d57f4ee52b35782ad7a",
   "height": 20
  }],
  "legendGroups": [{
   "heading": "",
   "id": "0"
  }],
  "layerName": "Census Block Groups",
  "minScale": 0
 },
 {
  "layerType": "Feature Layer",
  "layerId": 2,
  "maxScale": 0,
  "legend": [{
   "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAT0lEQVQ4je3VsQ0AMQhDUZC8ZKYhTJMxOaU4pNR2yW/oXmlQZ2+zCpPkCR12q0DbK92I6kTd26AqDEgHnngbkA8C42lAvgb/PROAnsoX8AEBdhGZAiiP6AAAAABJRU5ErkJggg==",
   "groupId": "0",
   "width": 20,
   "label": "",
   "contentType": "image/png",
   "url": "e8da33d3ddcba85566ac8354ed611111",
   "height": 20
  }],
  "legendGroups": [{
   "heading": "",
   "id": "0"
  }],
  "layerName": "Census Blocks",
  "minScale": 0
 }
]}