Protest outside EU mission in support of man detained in Estonia

The transcript discusses Europe's close monitoring of events at the Estonian embassy and a protest plan involving a bell that will ring every 15 minutes until Mark is released from prison. The bell serves as a reminder of Mark's imprisonment. The transcript ends with credits for subtitles and corrections.

Как часто будет звонить колокол в память о Марке?

Какова цель акции, согласно тексту?