UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'O+/xUysBqbW1hFibx+7Xksmag82PQScWTdAgFZCLMZE=' 
WHERE 
  key_id = '4a8b857dbea7e4daf5a97868ec345da7c99a5f58bb198f7573868f4daba6d959' 
  AND (
    token = 'O+/xUysBqbW1hFibx+7Xksmag82PQScWTdAgFZCLMZE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )