{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Traffic Signals",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "d1f3e3c06c3da4efd293f9e1368967f1",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAABEUlEQVQ4jbWUC27EIAxEjZR7QU5mOBlwMldj8CakK0rZdqRopYW8+DsH/bGO2aGIRCLyRBRuf5f+m5xzZQnYQdxeL0S1XofeBwrKDyICaJwCRSRrRCkRxeHuJQDxMLOIeOfc+Ra4BLOo7ckZkWaDHo80A51nu7gi3MPHmQGNSF+BIoKisB6uwkyxZ8KMmjfg0IAdxQigZnnV0Gqyq1LQKG/AMIzGjmoFMEwHe0fHfwGLbsAn8thQKgasyH8bFvrmWIQYSBFhbf9sQ2bApnSvYerD+Tto0J1+uc8L2KP0WKPlmewDjdqZ6wxdxoKrQeTcDGIGHmHv3eYGjZo+Xvjuh0PNfvTDW/oIjXsHn45dnyDTF3CLk7zCCXWgAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}