UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KQ/zzd2tRL5AmHgm7fWOdUkDw4ydOuymdZV489Om22E=' 
WHERE 
  key_id = 'a038d7e3d3450a71f8aa26b486ed9406fa019669379f5454c2d0ef2a2de10b6d' 
  AND (
    token = 'KQ/zzd2tRL5AmHgm7fWOdUkDw4ydOuymdZV489Om22E=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )