Spilled alc-free beer over keyboard, mb pro mid 2014. 'Enter' stucked

Carefully lift the keycaps following this guide: Keycap Removal & Fitting. Then using a cotton swap dampened with some distilled water (not tap!) wipe down the inside areas as well as the scissor mech (you can take them out and soak them in a bowl). Hopefully that does it. If not you'll need to completely disassemble your system to get to the keyboard from the other side. Here is the steps on getting that far: MacBook Pro 13" Retina Display Mid 2014 Upper Case Replacement. Apple only sells the complete upper case but you can find keyboards for sale but I'll warn you it's a big job!