To make the Asian Sesame Dressing, in a bowl, mix together the soy sauce, sesame oil, mayonnaise, rice wine vinegar, and granulated sugar with a whisk. Mix until well-combined and set aside.
In a food processor, place the crab sticks and pulse 5-6 times until finely chopped and shredded. In a large mixing bowl, combine the chopped crab sticks, cucumber sticks, lettuce, and cubed avocados. Drizzle the Asian Sesame Dressing to taste and top with masago.