{"layers": [{
 "layerType": "Feature Layer",
 "layerId": 0,
 "maxScale": 0,
 "legend": [{
  "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAa0lEQVQ4je2VwQmAMBAEJ7BVWI2diZ1ZTSxDWcWHeYh49xEyn4M8huUge1phBKbtnJ8psACzMmTGjgIoQ3ZhlxOmovZhONbxnnoEexBGUReGUVxxpwv/IKzN3wwLCSI3bVYn2uWEs/sq6wTsLX8TnarXDwEAAAAASUVORK5CYII=",
  "groupId": "0",
  "width": 20,
  "label": "",
  "contentType": "image/png",
  "url": "43927e7b4a1cbd50a4996edcb54e9a70",
  "height": 20
 }],
 "legendGroups": [{
  "heading": "",
  "id": "0"
 }],
 "layerName": "Historic Districts",
 "minScale": 0
}]}