Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQBzs/aD3wzVEsUnhQvAUAu6HhwBSeXAggewhVJa9nxZbzGHMwRgicUMmKI/… (1,748 chars)"
  }
}