var client = new RestClient("https://apitest.nilvera.com/einvoice/Draft/9cf58e0d-67d0-4e5b-b75e-5597e3f49f30/Whatsapphistories");
client.Timeout=-1;var request =newRestRequest(Method.GET);request.AddHeader("Authorization","Bearer <API KEY>");request.AddHeader("Content-Type","application/json");var body =@"["22d6b2ca-ba6b-47dc-a07e-846cc0e51a0e"]";request.AddParameter("application/json", body,ParameterType.RequestBody);IRestResponse response =client.Execute(request);Console.WriteLine(response.Content);