{
      "SaleToPOIRequest":{
         "MessageHeader":{
            "ProtocolVersion":"3.0",
            "MessageClass":"Service",
            "MessageCategory":"Reversal",
            "MessageType":"Request",
            "SaleID":"POSSystemID12345",
            "ServiceID":"207111107",
            "POIID":"V400m-324688179"
          },
         "ReversalRequest":{
            "OriginalPOITransaction":{
               "POITransactionID":{
                  "TransactionID":"7JLX001566393198001.NC6HT9CRT65ZGN82",
                  "TimeStamp":"2019-03-07T10:11:04+00:00"
               }
            },
            "ReversalReason":"MerchantCancel"
         }
      }
    }