UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'c4Kjw8QkUqhUY78DpUTaCXaDnlxklots/php+QbO0Nk=' 
WHERE 
  key_id = '6e7a0942ac77191b6ebf2a132f9df98d8c37c0eee2d6fb29ab214d7ae7b4a3c4' 
  AND (
    token = 'c4Kjw8QkUqhUY78DpUTaCXaDnlxklots/php+QbO0Nk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )