Constructor: updateNewStoryReaction
Attributes:
Type: Update
Example:
$updateNewStoryReaction = ['_' => 'updateNewStoryReaction', 'story_id' => int, 'peer' => long, 'reaction' => Reaction];
$updateNewStoryReaction = ['_' => 'updateNewStoryReaction', 'story_id' => int, 'peer' => long, 'reaction' => Reaction];