{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Road",
   "layerType": "Feature Layer",
   "minScale": 75000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "1b7494a2db4d304e98536225157a8160",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAACpJREFUOI1jYaAyYBk1cNTA4W7gfwrNYkQ3kJFCAxnQDaQKGDVw1EAyAAAw5QFSVMgOzwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  },
  {
   "layerId": 1,
   "layerName": "Railroad",
   "layerType": "Feature Layer",
   "minScale": 75000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "ff101560af7a74188e963d22e3cd076a",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAAAXNSR0IB2cksfwAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAEBJREFUOI1jYaAyYBk1cNRATFDiy/C/ZzMDI9UMJARoZ2CJL8N/YjVhUwsLBhZ0AWIMG9xhSMgnA+/CUQNpbyAA/v4NkU1hikcAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "height": 20,
     "width": 20
    }
   ]
  }
 ]
}