{
          "getEvents":{
             "timeSeriesId": ["UniqueId"],
            "searchSpan": {
               "from": "2019-02-17T00:00:00Z",
              "to": "2019-02-18T00:16:50Z"
              },
             "projectedProperties": ["DesiredProp"]
          }
        }

{
    "error": {
    "code": "InvalidInput",
    "message": "Error converting value "DesiredProp" to type
    'Microsoft.Rdx.Client.Events.Property'. Path
   'getEvents.projectedProperties[0]', line 9, position 45.rn---> Could
    not        cast or convert from System.String to
    Microsoft.Rdx.Client.Events.Property.rn"