Thinly slice cucumber, about 1/8 of an inch thickness using a sharp knife or Mandoline slicer. Place cucumber in a large bowl, add salt, and toss. Set aside.
In the meantime, combine lemon juice, maple syrup, sesame oil, Bragg's liquid aminos, garlic, and mix well.
Drain liquid from cucumber, add red onion, green onion, avocado.
Toss with the dressing. Keep refrigerated.
Garnish with crushed peanuts, cilantro, and sesame seeds.