{"layers": [{
 "layerType": "Feature Layer",
 "layerId": 0,
 "maxScale": 0,
 "legend": [{
  "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAOElEQVQ4je3MMRUAIBQCQAaK2YZItLGaszMsPv8FOKKME8aYF7cfQ0m7GqKMtlc1RBknjDEvXgsPqS0EUY+o3skAAAAASUVORK5CYII=",
  "groupId": "0",
  "width": 20,
  "label": "",
  "contentType": "image/png",
  "url": "dbff855b16b1c55c54802edc20cb6e74",
  "height": 20
 }],
 "legendGroups": [{
  "heading": "",
  "id": "0"
 }],
 "layerName": "Road Centerlines",
 "minScale": 0
}]}