{
  "manageEntity": {
    "action": "Update",
    "entityId": "871799321",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x668ddd04b08cc618e4af83592dd7c2eee6c574f04b09ed9675de0cbe1458bdf9",
    "signature": "0x6afa50540b95012df59f509af73a4dcc52f65d757832a32368c3831b78ae8c6f0fcfc38c47a99f3066447925461dcbc4c8855dca50d7854d8e9edd93a94d90ca1c",
    "signer": "0xfe5Cc95369D94e7335bc62f82e743Cb7c261Ae62",
    "userId": "871799321"
  }
}