{
  "manageEntity": {
    "action": "Update",
    "entityId": "749362247",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x23b697ea66f56b4211c5f404142622c92882e6913db10afd9ee2747f4535bbc7",
    "signature": "0xffd3f0096c525e181a8d1bd2cdb774ef484154814b91424ffde68e02ec7bc87314092dbd17d2902626eb983853cbb796b6cb7d45949545426f8a6555928db0011c",
    "signer": "0xAA06176Af11B62E4fE464f247854e383BEbf84ac",
    "userId": "749362247"
  }
}