{
  "manageEntity": {
    "action": "Update",
    "entityId": "735707434",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9d16e69b37ef608c2c097ef6864378c4dc3e5c790da64da8b723e51856ca9acd",
    "signature": "0x17d2d6d973b50a132348e50ee49fe347a4be12edad602d7de89c4ab594aa58f43061594ea0aef8245d2d50c620d76a11f149c355779f10c49f2c093af9a9c8631c",
    "signer": "0xA2ED571bCe585a15704A0AA41c033dfD6E7Cb796",
    "userId": "735707434"
  }
}