{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Warning_Sirens_",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "caa7c4d38277cf751016cb8d98fadff8",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAjElEQVQ4jWNhoDJgGTWQYsAybAwsh9JHGRgYjlBqYLm7kXwDiHHv+cfft59/aGVgYOgk10AbVUmBamddGQ4QB0TvvfykYee5hwy4DGUhYKC1kiQ/K2FPUBApIG9Dw5IsAztB3rv3/GM1zKXQMDxCiQs7bz//cPT28w/WMD41vHyEUHIZfjmFaDD4DQQAHUMrzZ6/GW4AAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}