Preheat grill to medium high heat. Spray grill with nonstick cooking spray. Add chicken, soy sauce, garlic, ginger, brown sugar, chili sauce, Sriracha, sesame oil and rice wine vinegar to a large ziplock bag. Seal tightly and toss to coat the chicken in the marinade. Place in the refrigerator for an hour.
Cook until the chicken reaches 165 degrees internally (about 8 minutes depending on thickness).
Serve immediately with green onions and sesame seeds for garnish, if desired.