Hide sensitive string in unity

Question

I made a WebGL game that requires users to enter their phone number to play the game. It will send a request to an API that will check if the phone number exists in the database or not. The problem I have now is I'm hardcoding my API token on the file, something like this:

public string token = "p2lbgWkFrykA4QyUmpHihzmc5BNzIABq";

I know it's bad practice and people can easily see this but is there a way to hide this or encrypt it so it's not easily visible? I'm not saying to make it secure because obviously if the token is in the file, it can be grabed, but just to make it a little bit harder for people to see the token.