option optimize_for = SPEED; option cc_generic_services = false; message EncryptedAppTicket { optional uint32 ticket_version_no = 1; optional uint32 crc_encryptedticket = 2; optional uint32 cb_encrypteduserdata = 3; optional uint32 cb_encrypted_appownershipticket = 4; optional bytes encrypted_ticket = 5; }