UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RkZ5NsCh2VAu8FML+1JNt7wOyk48BPs2GO26mYq0Zq8=' 
WHERE 
  key_id = '81fd5adf4e1087dc5528de97996c40d931a9ec9dee2a3ff637d7cc43601d06f7' 
  AND (
    token = 'RkZ5NsCh2VAu8FML+1JNt7wOyk48BPs2GO26mYq0Zq8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )