{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Forest-type Group",
   "layerType": "Raster Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "Oak/pine",
     "url": "f723bbe88d74d2df488d4651b3a678f2",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAQElEQVQ4jWNhoDJgoZmBb6X1/1NikPDTi4woBlILsIwaSDFgodwIVDBqIOWAhQpmoIBRAykH8DCElWdUM5BaAABMNAYbXmb0bAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}