{
  "currentVersion" : 12, 
  "layers" : [
    {
      "name" : "Polygon layer", 
      "serviceItemId" : "1c4c02e17aee4872acb146791739ba02", 
      "url" : "https://services9.arcgis.com/ptMeJSvCigyke2Tt/ArcGIS/rest/services/Field_Data_Collection/FeatureServer/2"
    }
  ]
}