{
 "layers": [
  {
   "layerId": 1,
   "layerName": "gs_station",
   "layerType": "Feature Layer",
   "minScale": 10000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "423bc44cee51c89fac3b0dc48a5b50e0",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAINJREFUOI3t0LENglAUBdBTMAGrfO0pLAkbOIkNDkJPZ/IHIHEA1qB8CRtYaE0UNLHg1jcn793Cl1Ps4A7+ACzLMkVEixojGkyrwYhozy51Usm6NOgzDqtB1Enl6GQWBn1aKr8DjlmXZuHuxvPtTWAz6PPrshHXreBkYbM14EfZwT8EH7ISIIKnb18oAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 2,
   "layerName": "gs_span",
   "layerType": "Feature Layer",
   "minScale": 10000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "92761c5bdfe6ae8022212e9be68bf095",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAADFJREFUOI1jYaAyYBk1cNTAwWLgUYb//6lhmDUDIyNtXGjNwMhIVQOpCUYNHDWQDAAACScDjpzt7FsAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  }
 ]
}