curl --request GET \
  --url http://localhost:{port}/namespace/{namespace}/bigPeer/{big_peer_name}/app/{app_name}/apiKey

{
  "meta": {
    "page": 1,
    "size": 1,
    "totalPages": 1
  },
  "data": [
    {
      "name": "my-key",
      "expiresAt": "2100-04-13T12:00:00Z",
      "permissions": {
        "remoteQuery": true,
        "read": {
          "everything": true,
          "queriesByCollection": {}
        },
        "write": {
          "everything": true,
          "queriesByCollection": {}
        }
      },
      "description": null
    }
  ]
}

{
  "title": "BigPeerNameMismatch"
}

{
  "title": "AppNotFound"
}