{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Buildings",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "UML Buildings",
     "url": "5989380cda6db002db6cac8b0b1106a2",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAATklEQVQ4jWMJTatp+fGPxYGBCoCD6c8BFpBhm19qWFPDQF/xGwwsDFQGLKMGUgxYKDcCFYwaSDlgoYIZKGDUwBERhhxMfw6ASlpqAJBZAP9iEEnwb1zsAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "No"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "Underground"
    }
   ]
  }
 ]
}