UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '6p9i/hX8h+HaX3hNvujhiSrCQ2QPSvbNclvH0JBcNiU=' 
WHERE 
  key_id = '50aa5be0bcd9562c43b2b36e6168e8cd0c3e0289938a59921c1bf852e79c4eff' 
  AND (
    token = '6p9i/hX8h+HaX3hNvujhiSrCQ2QPSvbNclvH0JBcNiU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )