balas on Nostr: encypted with what?

{ "id": "583ebcdc3b4b14dae6eef89548837774bb3eddc54afa9106340b73b51e5faa52", "pubkey": "9ec7a778167afb1d30c4833de9322da0c08ba71a69e1911d5578d3144bb56437", "created_at": 1669373232, "kind": 1, "tags": [ [ "e", "3d9a7a2c58dc443adc2c7f783bae5cc8a1878398f3fcfd46932f2232d2070536", "wss://nostr-pub.wellorder.net", "root" ], [ "e", "e23b66c17f77db3aee0727242214e98077ad1c1427dbedd2fe8522d063b32f8e", "wss://nostr-relay.wlvs.space", "reply" ], [ "p", "76c59c723c596bdb8ac7d2ebdba208bd836a35136c3a9efff8952fda33982aca" ] ], "content": "encypted with what?", "sig": "ebee6eb210f4380d2b6160ab3b1a240a71327b7a2ab24d10a65b6199f8c9048c5871acb2cf54c3b6550811ea2e1ea29e05f0478599ca2567738b89cfc8f1fdbb" }