{"layers": [{
 "layerType": "Feature Layer",
 "layerId": 0,
 "maxScale": 0,
 "legend": [{
  "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAnElEQVQ4je2SYQqAIAyFn+C9qpOlJ8tOtlgOWbFKwz9BDwYT9PPtqUdn+R9oioAFwOqAgE4OR6luwGr5bwMp57aoNffRAakZSPkBZutxKENDNZCOsKj6JNCZgMEB0yNQxuJDxQUJkAESAwQazk4th9G4uWSm8ksKfg28CXys2evxIBXB3lu5tf7DEgGPyPXq20CkD9+BWhw2qTtwA3AtK9ASrDPAAAAAAElFTkSuQmCC",
  "groupId": "0",
  "width": 20,
  "label": "",
  "contentType": "image/png",
  "url": "2d7e259b24af6d1349439b81ffef08c0",
  "height": 20
 }],
 "legendGroups": [{
  "heading": "",
  "id": "0"
 }],
 "layerName": "USA_Airports",
 "minScale": 0
}]}