UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u4b+dcIAKxAkzr3b6WHQWQkat09FuMlmeIi7OCItONw=' 
WHERE 
  key_id = 'dea1394b38b2e90e26efac595e8bf25b0419e670ae1e65a26631159b7bf89450' 
  AND (
    token = 'u4b+dcIAKxAkzr3b6WHQWQkat09FuMlmeIi7OCItONw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )