Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFT1hX4CJCx1fkBt/krOmSas6hyaP16i0KnDFHHuVSVQi7W9WgU/1b9ZQBF… (844 chars)"
  }
}