foreach (Record_QUE r in recs)
                {
                    RecordObject b = JsonConvert.DeserializeObject<RecordObject>(r.Body);
                    bill bill = b.bill;
                    string invoice_parameters = bill.amount.currency + "|" + bill.amount.value + "|" + bill.billId + "|" + bill.siteId + "|" + bill.status.value;

                                    

                    byte[] def_pam = Encoding.Default.GetBytes(invoice_parameters);
                    byte[] utf8pam = Encoding.Convert(Encoding.Default, Encoding.UTF8, def_pam);

                    //
                    byte[] def_key = Encoding.Default.GetBytes(key);
                    byte[] utf8key = Encoding.Convert(Encoding.Default, Encoding.UTF8, def_key);
                    //

                    string newhash = String.Empty;

                    using (HMACSHA256 hmac = new HMACSHA256(utf8key))
                    {
                      
                        byte[] hashValue = hmac.ComputeHash(utf8pam);
                        newhash = Encoding.Default.GetString(hashValue);
                    }
                    if (newhash!=string.Empty && r.Hash!="" && r.Hash==newhash)
                    {
                       //
                    }

                    }