{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Signs",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "4396dd036b87aa3a90faaa56444ab24f",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAf0lEQVQ4je2U0Q2AIAxEj6R7yUjdANmAkepkmEZEPwRR/DHhEhL68649GggfiwbwzxlytAhG+oAcLQA9LtUK9DUw3Ri6BNyl9wXACyDn7q5M5ufAYAQcy2aFsQl1+ZzfIenJUABMp9HVoPrSVMVtnUjryrTvYSNMNX6bfn2e4QoW8iDhbe9ebgAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}