{
 "layers": [
  {
   "layerId": 8,
   "layerName": "National Parks",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "454c2e0f0301bd3ab9b53b9a49df6ca1",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAU0lEQVQ4jWOxWM7QwEBFwAJjyIhRZtCTV0gGggwLdaLMwNX7IIbCXUgtwDJqIMWAhXIjUMGogZQDFiqYgQJGDaQcgMMQVI6ByjNKAEoBiyxAKQAAG+0Og5Y/E14AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}