Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwAZ/MnX1AAuNeWWYb1Ft2bnWaYuiWG8n1hfOOk1DsPl8HbqXGNGETh8Rhzu… (844 chars)"
  }
}