Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwKc6Uhqk2OL/4qHoNzT0oUt05VqQ4RScsRaRKDI/bkmpTlL+M8pBAzxhR1v… (844 chars)"
  }
}