internal MultipartContent BuildMultipartContent(JToken data)
{
MultipartContent requestContent = new MultipartContent("related");
string firstPartStr = JsonConvert.SerializeObject(data);
HttpContent firstPart = new StringContent(firstPartStr);
firstPart.Headers.ContentType = new MediaTypeHeaderValue(Client.ContentType.NXREQUEST);
firstPart.Headers.Add("Content-Transfer-Encoding", "8bit");
firstPart.Headers.Add("Content-ID", "request");
requestContent.Add(new StringContent(firstPartStr));
return requestContent;
}