UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a6Tt8dHlF0PIFAtza64nxLBAi5yNpLcilZgv7uTLNhg=' 
WHERE 
  key_id = 'a1ff30e986a5626a1d51eccafe2755ce40f0471b69a31890ccf130370e4a3b13' 
  AND (
    token = 'a6Tt8dHlF0PIFAtza64nxLBAi5yNpLcilZgv7uTLNhg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )