{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Towns",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "b577a5a5aa944183f1bd2360a5ebf5fc",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAD5JREFUOI1jYaAyYIHS/6lkHiMLYTWkARQD///fR5YhjIxO2A2kBhg1cNTAUQOHoYHIpQZVDKQGgBnISC0DATMpBJZsCsO/AAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  }
 ]
}