UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Kn6z5ollEs7VnwbmPcp0O/bLYQbStCYbOy7PHg4Bd+0=' 
WHERE 
  key_id = '6b233639637591f698e105cf4dff2f57fcc40589825444e797e87634b82077a3' 
  AND (
    token = 'Kn6z5ollEs7VnwbmPcp0O/bLYQbStCYbOy7PHg4Bd+0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )