Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwBL5ViaEzOyZvlvWyQiYY8un2Rw1m3bSC/2eezAk5Xy+kgmiu7i00E8G/UG… (844 chars)"
  }
}