{
 "layers": [
  {
   "layerId": 0,
   "layerName": "elvedelta",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "34fad856fb5eb01e166ebe0ed05c8ab6",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAABE0lEQVQ4ja3UP27CMBQG8M+KYSHqyCHCIZJLeGBisRc4Q6UiOAND5J1KOUPFnzu0Ui+AMiPRSojI6IHigoghNH5Dljz9HOd9Np/i3cBjcXoYmDGAZVXDS38vik3wuVsFXy6kExeRMWb0u25FJ5CwV/RvQK21oHdSDjIXlqZpjzHWzVU4YsCiBOHAIKV8hAml1NsE88RuuSmGi+I+sRuwKXYF+sAsSNE4T7MZZkHKWY1oPMQseC+0dbFOXEQ/K14dm2cxrbXYfRQ9+j7uAwOA7bydMWDIfWBSysx5Uv6D4aK4T+wK9IGhBGnkdAU1xSx4yFmSq3BW/tiqokUpGjRNR9/fUPbfgWDAaXVXUWipnaJxr+8IdWmwEmU8ypUAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}