{
  "manageEntity": {
    "action": "Update",
    "entityId": "932106099",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x915530d83da4b31ff51083c58947f2af55adce11ce943b3f50a123c2a9b0abb7",
    "signature": "0x246a6b43a7487dd621fed34b27946f55471e7cb17b5829d5bf2c1d0a512718c539fdda1d5c1b9a58596501733383e72ec529d938bddbe853b35d9f2fd27134581c",
    "signer": "0x930E3fb601eFF8837d755287D3C5fc4E54D1E35A",
    "userId": "932106099"
  }
}