Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQHuMjTI1BKUAgXdJp6lkCrw6DzeMVd8uiWu4+QzjAw+9hgY3hyuC0AcKph4… (1,748 chars)"
  }
}