This Gold Ticket item is a reward that you may have seen around in Special Goals! This item unlocks special Bingo stage events, such as, "Psychic Reading" and "Mad Scientist".
 
When claiming the Gold Ticket, the Event room will automatically appear at the beginning of the Bingo Lobby; You won't have to worry about the extra step of finding and using the Ticket.
 
Event rooms have unique Puzzles and Rewards compared to the regular Bingo rooms! Try and complete as many Puzzles as you can before the time runs out!