{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Roads",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "8d8618dbc27b7e8077ce312666527eb9",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAC9JREFUOI1jYaAyYBk1cNTAYWvg5s2b/1PDMF9fX0YWGIMaBjIwDJkwHDVwmBsIAOzzBTmfeNA/AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  }
 ]
}