{
  "currentVersion" : 12, 
  "layers" : [
    {
      "name" : "TrafficSignals", 
      "serviceItemId" : "7d753dcb0f8849f99099eb8c480e91cb", 
      "url" : "https://services2.arcgis.com/cHGEnmsJ165IBJRM/ArcGIS/rest/services/WebEocFeatureLayerDEV/FeatureServer/3"
    }
  ]
}