{
 "layers": [
  {
   "layerId": 0,
   "layerName": "BackFlowSites",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "4635f683b44b47102b4d66cbce638c4e",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAw0lEQVQ4jWNhoDJgYWBgYGBgZ1dhUNLtocikX3/XMdw9vwhiICOLPMP1M/4MWmYMDCyspBt29zIDg5waAwMDA9RAGOjYyMAgLEG6gZk2DAy/fzIwMMC8TEUw1A3sz2NgOLgOVUxYkoFh7mkyDfz0joHh9VOiXUfYQDLAUDdQzxpTjE+IAgMDMyGYBDDUwvDDa/JM+fMbh4FxeuQZyMDAwKBpgmTgj69nGRgYHMk3jYGB4fqZxwgDGRg+MDAwHKDIQCgAAA3ZJPzZBZ5vAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}