{
 "layers": [
  {
   "layerId": 0,
   "layerName": "แผนผังถ้ำ",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "11bd17f1f35e519b1690934a647d3265",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAS0lEQVQ4jWPJzy/azsTE5MBABfDv378DLExMTA7uHh0c1DBw544KBxZqGIQMRg0cNXDUwFEDRw2EGvjv378DO3dUOFDDsH///h0AAIpLE4PYXq+LAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  }
 ]
}