{
 "layers": [
  {
   "layerId": 0,
   "layerName": "City Buildings",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "8a66a7a0c2d922e2bdf1be59780c9fc3",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAANElEQVQ4jWN5ysDQwEBFwEJNw1AMlFpJmUHPwtEMpBYYNXDUwFEDRw2ks4Gw8oxqBlILAACgdATzf/4GugAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  }
 ]
}