{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Rivers",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "Perennial",
     "url": "6cf477c08d0b16af5feebd88cfbdb0f3",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAVUlEQVQ4jWNhoDJgGTWQYsAyEg2Mee7AwMBQz8DwH0RTABgPMDAwNIJcWD+9nptCw8DAIbPxK23CsBFkMvW8vEQSxDhATRdSFbBQ1ziGUQOpAKgeKQD8bw/xZ5aiYAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Perennial"
     ]
    },
    {
     "label": "Ephemeral",
     "url": "dec1affbbf13bd5c8048f369a2e73d9b",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAVElEQVQ4jWNhoDJgGTWQYsBCuRGoYKQaOP32p//4lTEeyFTldZx++7MDA8P//bhUZaryMdLGhZmqfIzEKM5U5T0Aci5BA6kJWKhqGsOogdQAgz9SAN7HDErloSEpAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "Ephemeral"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Type"
    }
   ]
  }
 ]
}