System.arraycopy(leaseKey.getKey(), 0, buffer, dataOffset, 16);  // LeaseKey
        writeInt4(buffer, dataOffset + 16, leaseState);  // LeaseState
        writeInt4(buffer, dataOffset + 20, leaseFlags);  // LeaseFlags
        writeInt8(buffer, dataOffset + 24, leaseDuration);  // LeaseDuration
        
        if (isV2()) {
            System.arraycopy(parentLeaseKey.getKey(), 0, buffer, dataOffset + 32, 16);  // ParentLeaseKey