UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '1MDGSXEmpUZ77QV6Va3oK/bBWa//flu5nBbarqPyp6U=' 
WHERE 
  key_id = '6fd51cb3625beae963ea6e60b9622a7cd64200fc46ae0704f37f491475d1f92c' 
  AND (
    token = '1MDGSXEmpUZ77QV6Va3oK/bBWa//flu5nBbarqPyp6U=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )