UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'SFK+tiPkB1h3WRRF4Bems+XuwCeJwPTiWE+CJheDeDA=' 
WHERE 
  key_id = '12ae41b9fcd65056279c49f2dbcefa04793ca3fab1483e530463c56943af159e' 
  AND (
    token = 'SFK+tiPkB1h3WRRF4Bems+XuwCeJwPTiWE+CJheDeDA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )