{
 "layers": [
  {
   "layerId": 0,
   "layerName": "adt",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "30bba886b6838caf518c81f5f63663ab",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAjklEQVQ4je3QMQ6DMAyF4X9g6crABTrSQzBxraTXypRD0NEX8JDVa5eAKlUNATrmSVEUyfpiu+PP6RrYwC0+3zGfS6B/9LMDUBOnJs+PDw6D03C7u7GfARiBVwpuSYFfaA24U3IM/IqaQGGPe6BfUkBN3Npp3uFpEMCrSVSTaX2XimtHjqWuzoDVaeD1vAFiwCntVf9+5QAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}