{
 "layers": [
  {
   "layerId": 0,
   "layerName": "carbon",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "e4244d3f649a6f4de8efff5d348cca64",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAiUlEQVQ4jWNhoDJgGTWQYsAybAxsgNIHoJgiAxskvZTqQYzPt9/Xf7n9vhHJApINdOBRFayX8FIEcyQYFBlebLtf/3zbPQZchrIQMpBXVZCAEgoj5fPt9wz4wpGFgP4GkPdAYQdzKTQMyTYQBBq+3H5/4Mvt9w5gHp4IIcXLBJPL8MspRIPBbyAAi0op+e9giGcAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}