Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwEImKKiDQs/ivNWykct+yNg5H3Fj9Bg9nqMJ7YVN3cRgXLO6jdB6oTWgwXm… (844 chars)"
  }
}