Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCnqN6RlNchKFPpOu0NN7khyHKeXgr8/P4mhPfJpePnV1CouYzLri+9eoGB… (1,748 chars)"
  }
}