Combine ⅓ cup mayonnaise, 2 tablespoons yogurt, 2 tablespoons sweet chili sauce, 1 tablespoon Sriracha, 2 teaspoons soy sauce and 1 teaspoon vinegar in a large bowl; whisk until smooth.
Add rinsed chickpeas, sliced cucumbers, chopped bell pepper, ½ cup carrots and sliced scallions; toss until evenly coated.
Garnish with additional scallions, if desired.
