{
  "manageEntity": {
    "action": "Update",
    "entityId": "882968362",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x007849060eb140f767829c8fc4fabda0a423a4d996104f395ae8aac6f03127b9",
    "signature": "0x1fa3c3cfe5f73eb55b6958669cbce970795c806c85f28e651ddcac96d1d37ca9569fe6e1cd55ec4d2ea5ae332e038e41d76e37797842e5ea0baa95920d0702e61c",
    "signer": "0xfbf237a9ede64d2D31C8AcAa0b15633A26555989",
    "userId": "882968362"
  }
}