{
 "layers": [
  {
   "layerId": 0,
   "layerName": "การสำรวจถ้ำ",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "d987d18069a7d09146a7895abdfd52eb",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAkElEQVQ4jWNhoDJgGTVw1EA4aIDSB6CYIgMbggOF6hkYGBiuX/9ef+3G90YkC0g20EFLg7M+OEAQwgsQZFi74X392vXvGHAZStBATU1OAkpIMxADXL/+nYEBTzgSMrBh7fp3DNevf6+HuRQahmQbyMDAwNBw7cb3A9dufHeA8fEpJtbLB/C5ihwDiQajBlIOALftKY1l774sAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  }
 ]
}