UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'brU1d4FH8OZzKOYUXg93tinkHHWpDtlWFY77pWPFWBM=' 
WHERE 
  key_id = '27d37b42000af27d6ac60493e28449f8850c7a5f1da163995e64fdd63b1b25e0' 
  AND (
    token = 'brU1d4FH8OZzKOYUXg93tinkHHWpDtlWFY77pWPFWBM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )