{
    "@context": [
            "https://www.w3.org/ns/activitystreams",
            "https://w3id.org/security/v1",
            {
              "toot": "http://joinmastodon.org/ns#",
              "sensitive": "as:sensitive",
              "ostatus": "http://ostatus.org#",
              "movedTo": "as:movedTo",
              "manuallyApprovesFollowers": "as:manuallyApprovesFollowers",
              "inReplyToAtomUri": "ostatus:inReplyToAtomUri",
              "conversation": "ostatus:conversation",
              "atomUri": "ostatus:atomUri",
              "Hashtag": "as:Hashtag",
              "Emoji": "toot:Emoji"
            }
          ],
    "signature": {
        "type": "RsaSignature2017",
        "signatureValue": "Kn1/UkAQGJVaXBfWLAHcnwHg8YMAUqlEaBuYLazAG+pz5hqivsyrBmPV186Xzr+B4ZLExA9+SnOoNx/GOz4hBm0kAmukNSILAsUd84tcJ2yT9zc1RKtembK4WiwOw7li0+maeDN0HaB6t+6eTqsCWmtiZpprhXD8V1GGT8yG7X24fQ9oFGn+ng7lasbcCC0988Y1eGqNe7KryxcPuQz57YkDapvtONzk8gyLTkZMV4De93MyRHq6GVjQVIgtiYabQAxrX6Q8C+4P/jQoqdWJHEe+MY5JKyNaT/hMPt2Md1ok9fZQBGHlErk22/zy8bSN19GdG09HmIysBUHRYpBLig==",
        "creator": "http://mastodon.example.org/users/admin#main-key",
        "created": "2018-02-17T13:29:31Z"
      },
    "type": "Undo",
    "object": {
      "type": "Block", 
      "object": "http://localtesting.pleroma.lol/users/lain",
      "nickname": "lain",
      "id": "http://mastodon.example.org/users/admin#blocks/2",
      "actor": "http://mastodon.example.org/users/admin" 
    },
    "actor": "http://mastodon.example.org/users/admin",
    "id": "http://mastodon.example.org/users/admin#blocks/2/undo"
}
