{ "layers": [ { "layerId": 0, "layerName": "Census Railroads", "layerType": "Feature Layer", "minScale": 10000000, "maxScale": 100, "legend": [ { "label": "", "url": "5c11d0071769753ebb779d74cb66f7fe", "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAOklEQVQ4jWNhoDJgGTVwQAz8z8DAwEhNA/GCEW7gfxL0YVPLiG4gzpjDYthoLFNmIN6wHhQuHOIGAgBR4gRSYlgo8gAAAABJRU5ErkJggg==", "contentType": "image/png", "groupId": "0", "height": 20, "width": 20 } ], "legendGroups": [ { "id": "0", "heading": "" } ] } ] }