public boolean validatePrepare(final Prepare msg) {
    return subsequentMessageValidator.map(pv -> pv.validate(msg)).orElse(false);
  }
Validate Prepare payload.

@param msg the Prepare msg
@return the boolean
consensus/qbft-core/src/main/java/org/hyperledger/besu/consensus/qbft/core/validation/MessageValidator.java