{
  "manageEntity": {
    "action": "Update",
    "entityId": "6270901",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9c9ce516cc11e56e40d6a7107432d0410b3e7ee89008cd54dd4d38ec7186d0e1",
    "signature": "0xd69642c52b25b7bc81a57553d5e0ee605968e5b05096646cb680979be352c3cc012ee8d367446c512111564a0a42e339e036d63d12eb9bebc748dd5a091c29651b",
    "signer": "0x175A3bebFa14E64C549CAc2962191B2B8C788421",
    "userId": "6270901"
  }
}