How to wash farm fresh eggs??

I got some fresh eggs from my mom yesterday but she warned me to clean them thoroughly before eating them

But do I just use warm water??

Or do I put some dawn dish soap on them??

Also do I have to scrub them hard enough for the brown-freckle like spots to come off??.. when I scratch them with my nail it comes off so I’m not sure if I’m supposed to scrub it off or if it’s fine to leave it