fan signing event

I apply for the fan signing event.

私は愛好者向け署名会に応募します

I apply for my favorite singer's fan signing event.

私は好きな歌手の愛好者向け署名会に応募します

I apply for my favorite singer's fan signing event for the first time.

私は初めて好きな歌手の愛好者向け署名会に応募します

I apply for my favorite singer's fan signing event for the first time this evening.

私は今日の夕方に初めて好きな歌手の愛好者向け署名会に応募します

I apply for my favorite singer's fan signing event on the official entry page for the first time this evening.

私は公式応募欄で今日の夕方に初めて好きな歌手の愛好者向け署名会に応募します