{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Towers",
   "layerType": "Feature Layer",
   "minScale": 5000000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "6e901390cd7165c92c03589dca9158f1",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAABIklEQVQ4ja3TOyvFYRzA8c/hyDWKQbFQinIZeAcYlIyy8SrIS7DYlDcgo1IsMsogEimllEEYRJRLOS796zdIzul/Ls/yPL/L8+13zarwyabwGUYranCCm3KBGezGe6wSwKoUPqmBbXj4JX+XC+zBQSWBnVG3pIa1GMU57koFPuIeU+jFEkbKAWZwhQk84SXGRynAxkhzGsvoxhxuSwUOoQurIV8ih3nslAJsx/Uf3Vek3BIlKAr4ikPMYi2aknR8AYPYKxaYi6HewCKesRK2pnyfsnn0SVpv8e7Aadz1of8sFtiHMwygGVuoxgw2I/qigA2xdsmq7YcuiWodkxFlHd7TApNxOcbFP7ZtjKMfR2mBSSM+8qUVu/3vxuQDFoIV9PkBAnA6rV7IddMAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}