{
 "layers": [
  {
   "layerId": 0,
   "layerName": "ElevationContours",
   "layerType": "Feature Layer",
   "minScale": 15000,
   "maxScale": 0,
   "legend": [
    {
     "label": "Index",
     "url": "23d5b238c7dbf6b48bc0e5be498441e1",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAL0lEQVQ4jWNhoDJgGTVw1MBha2CxD8N/ahjWu4WBkQXGoIaBDAxDJgxHDRzmBgIAr0AEk1QVf3UAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Index"
     ]
    },
    {
     "label": "Intermediate/Even",
     "url": "4ed875e1d9839ebf374b72066e45434e",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAMklEQVQ4jWNhoDJgGTVw1MBhbeCzGQz/0SWlMhgYsWnCp5YFXYAYgE/tEArDUQOHsYEAAHQHV6SbUMUAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Intermediate/Even"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}