Aggressive vs Defensive Quote After a Signal

There are two possible actions. Aggressive pays 10 in the good state and -8 in the bad state. Defensive pays 4 in the good state and -1 in the bad state. The good state has prior probability $\frac{2}{5}$. Before acting, you may see a binary signal that is correct with probability $\frac{4}{5}$. What is the value of observing the signal, and which action should you take after a good signal and after a bad signal?