Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwCOeUm/lkwUcPQGfj7onmD3CsAGY3jL425ULe2AraVjWlO4ZCfC/5om1f+/… (844 chars)"
  }
}