{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Zip Codes",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "09d97f7597b691ab45bf9f551eb8d29f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAPklEQVQ4jWPJy8v7z0BFwAIiYtL7qGLYkplFEAOpCVhGDaQYsFBuBCoYNZBywEIFM1DAqIEjJgyXzCyimokAfa4HSZp+Q6MAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}