Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDo+Ri8JgdubH7DK4V5f/fpKlAhi3NUx66egs0s4boxYwRiYCNcvJ6vtE6/… (1,748 chars)"
  }
}