{
 "layers": [
  {
   "layerId": 17,
   "layerName": "KENNET AND AVON CANAL",
   "layerType": "Feature Layer",
   "minScale": 500000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "d70a49200ebb989456ac9a337414f179",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAXklEQVQ4je2QQQqAMAwEJ5pflWJ/Zv1ZRfqsEsH+wOYidg455DAsozijU/ibhtUywjZkahxEKUo1ex79vmchUe0zDR1RggiXJVb2IZNxEiT3hVEKUHwWOqNTOIx7wxtSlhIUz9+BjwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}