UPDATE 
  vi_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nUE6H05dTSQzZKv9Xfpeu25XVyrsn7iwyDM1eWXUA50=' 
WHERE 
  key_id = '957468da30c8ddde9daa56615d5e8d6703cdc29c11d54397f6309433790a1cb5' 
  AND (
    token = 'nUE6H05dTSQzZKv9Xfpeu25XVyrsn7iwyDM1eWXUA50=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )