What is this Ghost Icon

I have a Galaxy S7 Active.

View attachment 77016 Yesterday I received a notification on my phone that I did not recognize - a blue circle with a ghost inside of it and next to it the statement "Click me!! Click me!!"

It seemed concerning and a person I trusted to know these things clicked it and it took him to a game center.

Today I have the same icon with a different message. I don't want to click it as I do not know the source of these notifications.

Can anyone help?...

What is this Ghost Icon

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