{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Historical Markers",
   "layerType": "Feature Layer",
   "minScale": 80000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "1a95a39e890f8e7a20ba48b5417023db",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAp0lEQVQ4ja3U0Q2EMAgGYB7Y69xB9ynuozvUzS54bY5ohJ/rNWlSmvqVRArTnweD54SIapvDoBBRaXNt8c+gKCTL9Am2Wsx+GpSOlfn13QxQzmB97aGMYijKGQxBOYtFKLdgymAeygYcHdVmKPYmNMt1P/Sbc3kF0+gFE+8vh+gT5tXhI+ph0Uu5oRGGvGVbEiFGYLex6HD76qimprXqYiioA+rWevINtCht+TjBvGsAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}