How do you clean a Logitech G810 Orion Spectrum?

[Juffury]

Title says it all, I've never had to clean out any keyboard before, and the keys feel pretty solidly put in. Any help?

 

[Colif]

if its anything like a G910, the key tops just pop off. First day I got mine the key that turns the colours off fell off and it just pops back on again.

[video="https://www.youtube.com/watch?v=uEtxL0EOw-E"][/video]