Parameters to update the reward authority at a particular rewardIndex on a Whirlpool.
PublicKey for the whirlpool to update.
The reward index that we'd like to update. (0 <= index <= NUM_REWARDS).
The current rewardAuthority in the Whirlpool at the rewardIndex
The new rewardAuthority in the Whirlpool at the rewardIndex
Parameters to update the reward authority at a particular rewardIndex on a Whirlpool.