UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'BU+ZupMq1JEJUT/W9oajrC3bJeBftX0AeoVjFTwtkBQ=' 
WHERE 
  key_id = '50b0442955847ed2b8186f97d02e368589790db96af713bba1d007244271adaa' 
  AND (
    token = 'BU+ZupMq1JEJUT/W9oajrC3bJeBftX0AeoVjFTwtkBQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )