UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MBEhKBt0PSuMKlTOrlRtXGOIwxn3U9a9+GhyDl506Og=' 
WHERE 
  key_id = '53e4aa826cc1d6761181892589f6d73f9168c5009c16a1859c801a77352cfc19' 
  AND (
    token = 'MBEhKBt0PSuMKlTOrlRtXGOIwxn3U9a9+GhyDl506Og=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )