{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Sirens",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "3cf75d092e5decdaa4da201d0a8f9fac",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAr0lEQVQ4jWNhoDJgGTWQYsAy9A3k4GCrZmBkrGFmYWb5/fPXnl+//niSbSAHB1t1cX1aS3ZpHJg/tXuRR2/jrOofP361kmOgjZWjSQPMMBAAsXubZtcwMDCQZeCRYwfO/kFXY+VgzLJv+zEbkDypBjIw/P/fMrV7EbKXGY7tP9OAyzCCBoLCqrt+hs2Etnkuf//8/QOyAF/4ERXLoFj99Qvk8xGTsEkFLCTrGPIGAgAmfUTbj8qUvgAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}