UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Gxrd0PiUEzNyKgucqLKn83YtK7xBOpidb4f41pk73MI=' 
WHERE 
  key_id = 'd21ae0ca072466b8b1234553473577ab94b9d1351525430f97f160794da6f44b' 
  AND (
    token = 'Gxrd0PiUEzNyKgucqLKn83YtK7xBOpidb4f41pk73MI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )