{
 "layers": [
  {
   "layerId": 0,
   "layerName": "airport",
   "layerType": "Feature Layer",
   "minScale": 600000,
   "maxScale": 0,
   "legend": [
    {
     "label": "",
     "url": "e6ddc57fb860c94f8a845d09ec2baef6",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAABb0lEQVQ4jdXTP0tbURgH4OfGRGiu0KGTY3FwEoIO7SA46mdwExf/TS4uLg46KKhbJsEloA7ibIJfQZ0UFEGEihkUJN4G1NwOtxXbRqTXOPQHhwPnHB7e93BOVouTTaY4yOUUurt9SIOcnfkeRc4Jrn+CugYGlCsVn9KAYaiRy/lyf+8JVK/7mAaDuzuZzk75y8unlluX9wULBVZX2d5mc5OrqzeCBwdMTlIssrxMuUypxM4OtVoKEI6PGR2lv5+lJYaGiKIELZWoVuntTfb7+tjaYmWlCRgELCzQ3s74OBMTzMwkV9DRwfBwMn4ljjk5oa2Nep0w/AOMY2ZnWVsjn2d9vXlLR0dMTbG/z83NKy03GoyMJAfn5nh4SNYzGRYXGRtjfp69vX+4Q5ie/nutUmFwkI2Nl7EXwWY5PU1ewONji8DDw2S8lv/n60U9PS7C0OdUSNbt7q7aMzD4VizGX5FPWVhMcP68QgTVlNhv+QF4N3BsD2YGCAAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": ""
    }
   ]
  }
 ]
}