{
  "manageEntity": {
    "action": "Update",
    "entityId": "472758387",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0xe34f4095a4f0dafb51ac6a19fd7b33a78465e0f676131474c9fffe44c326c118",
    "signature": "0x189ccafc09ed27ea2e4b793f7d22ade8e05fadb6960562e16472197f3a709f177debc37dff0d199a99d41ec9f7c399407899a9ae8d22757910f6672cbffeed521c",
    "signer": "0x3Fa647464da7FB0f2B0b6f7f2b539Bf24AdAb791",
    "userId": "472758387"
  }
}