The transaction exceeds the maximum size allowed by the protocol. Indeed, once serialized, transactions must be under a bytes limit specified by a protocol parameter. The field 'data.measuredTransactionSize' indicates the actual measured size of your serialized transaction, whereas 'data.maximumTransactionSize' indicates the current maximum size enforced by the ledger.
The transaction exceeds the maximum size allowed by the protocol. Indeed, once serialized, transactions must be under a bytes limit specified by a protocol parameter. The field 'data.measuredTransactionSize' indicates the actual measured size of your serialized transaction, whereas 'data.maximumTransactionSize' indicates the current maximum size enforced by the ledger.