Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBJtRzVdD7bhEBvF6KoWiPNJqAD5AZK3mj2Q71spYynu3GSfMaRFlhG4Dce… (1,748 chars)"
  }
}