Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwHt6aT5AtdFHXu5dXOFe8Q+aWCrTShE7PwoyFVjYDmwVTupVyTfDGnN1UVJ… (844 chars)"
  }
}