UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RszBCdujz0tg3NSUz18ncvI8PHXtbGazaaUwELhusd0=' 
WHERE 
  key_id = '25c97938038ce03318b168873d2b9e6ae40c058a4335b6ee4003fcdd0365b479' 
  AND (
    token = 'RszBCdujz0tg3NSUz18ncvI8PHXtbGazaaUwELhusd0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )