Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQD42nq7vw/6/NC5620ynrBUQYGW9pMlpirTChsuWGsEfH6ir3jtyIYH4Yd/… (1,748 chars)"
  }
}