{
 "layers": [
  {
   "layerId": 0,
   "layerName": "TNU",
   "layerType": "Feature Layer",
   "minScale": 1500000,
   "maxScale": 5000,
   "legend": [
    {
     "label": "",
     "url": "6d9f5ed77d39b82799914c7aed6510b5",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAANUlEQVQ4je3MsREAIAwDsc+dh8yIbAl1arsjGkA6cAlpKBGmDW3yi2lDnwLHsKFPH4YNlRwftUACqs1MkxYAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}