{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Contours",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "5 Meter",
     "url": "42181a7077129a4ee6877202fd1e7ab4",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARklEQVQ4je3RwQkAMAhD0SAO1gUyrQs4mfTcsykU6h/gEYhDnA/YzvvE2a9gRKyqWh3IzJJk3llIMgGkDFTmUg0DKnr/lA3Ahwq4w6lAXwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}