{
 "layers": [
  {
   "layerId": 26,
   "layerName": "AIRPORTS",
   "layerType": "Feature Layer",
   "minScale": 24000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "57d85b4ae71ce3e4e34ed611a43f76a1",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAwklEQVQ4je3RP0tCURgH4Mc4QxFONrXY3qeoVXKzVmdB93bHiD6Ce4vODpJfwMnmaGhOxPGKCOfCJTA7dQmCfnA4nH8Ph/cNSk74B3+thg3M8FYWeIsh7soCT+JQBlhHFWc4xuo74CFaaOMCFdzEWj5igGkKeI8rzPEQsWe84BwjXGP8VbCLTmF9iSf0C3sHKT/MPtw5inUsZp0C5qlhEhvTi/B23pnw2SHe0cQCS5zuuW8fmMVG5Hn9KZickP7kr4MbNnsbqEOsWOYAAAAASUVORK5CYII=",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}