{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Secondary_GPS_Network",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "Secondary GPS Network",
     "url": "612238b5abcecb191d050409d0fd9ab5",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAGJJREFUOI1jYaAyYBk1cGga+B+LGCO5Bv6HEEeRTLKGiWM1FJ+BGIbB+PgMxetCdMOwGEqSC8kC9DWQkcEaq7dxeZeQgYwMDAz/0Q1FMozkWEYxFIs4yS4kqJlcA0kCI9BAAMMnFY7JegLGAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  }
 ]
}