Flutter how to change rive animation size?

Question

I have tried covering the rive animation widget with many widgets but the animations still remains big no matter what i do, how can i change the animation size here is the code

                height: 50,
                width: 50,
                child: RiveAnimation.asset(
                  'assets/rave/rotating-crown.riv',
                  fit: BoxFit.scaleDown,
                ),
              ),

here is the result as you can see it's very large and i want it very small like a loading indicator

i tried widgets like Container, SizedBox, FittedBox, but none helped