{
 "layers": [
  {
   "layerId": 0,
   "layerName": "Sign Posts",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "1caef04cf18873b2cc818672e281a5b8",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAj0lEQVQ4je3QsQrDIBDG8f+QsUu3rCmkz5E9D6V9KHefQyFd3W65B+hiSqHUmKSjH4gIx8+76/hzugY28B2bb5/PKdDe+tkAiEYjGh4fH+wGp+vlboZ+BmAAnsmZJTl+oRXguFGyD/yKaITCHrdAuySHaDRrp3mHh0EAKxq8aJjWd6m4dmRf6uoIWJ0Gns8LOTQp3zgY7/gAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}