UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'SNMXclBttAZ/8cnntc6uWOdFRijfZ9ul5U47BMm4iKY=' 
WHERE 
  key_id = '6293a75482ccf95a8ce58ee385ac3cda94f343d2a10fe58f0d95a6063333d9ff' 
  AND (
    token = 'SNMXclBttAZ/8cnntc6uWOdFRijfZ9ul5U47BMm4iKY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )