UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'G21LE40KwF1V+MhBkCuQtqdLxr/yhYYwz999joLgWPU=' 
WHERE 
  key_id = '81bd187516fffe2b09079919f8562003f02e2592ad54a8f5295dfe79826a4d81' 
  AND (
    token = 'G21LE40KwF1V+MhBkCuQtqdLxr/yhYYwz999joLgWPU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )