Lazy Load Blob

BIZ TMS Aurelius
1

Hi,
  How to return a Lazy Blob from a datasnap rest server?
function TSMUserX.RemoteBlobLoad(JsonBlobInfo: TJsonValue): TJsonValue;
begin
  XSerializer := TDataSnapJsonSerializer.Create;
  XDeserializer := TDataSnapJsonDeserializer.Create;
  try
    ProxyInfo := XDeserializer.BlobInfoFromJson(JsonBlobInfo);
    Result :=XSerializer.TOJSON( FManager.BlobLoad(ProxyInfo));//How To do that???
  finally
    XSerializer.Free;
    XDeserializer.Free;
  end;
end;
I belive some time ago i return a Stream using property Data, but in this version this was chenged.
What type should i return (TStream, Tarray, TJSONValue, etc)

thanks