I ordered this signed book from ebay, but I'm not sure that is that a real Matthew Gray Gubler signature or not. It is said by the seller that he signed it in Los Angeles, 2019. April 6th, when he dedicated books. 

What do you think, is this real or fake?

(In that case if it's fake I can get my money back, I still have some days) 

Thank you for your help!