Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwGYV9ZXLZC3xN3O+evIpdtYK2u0QSfJ72y+o/6OEcB/QBzAK7poiZtMUzRj… (844 chars)"
  }
}