Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQHDl7Kgfgznpwt7GEgq6A+8CDyOHy6EPf2GqyRqyu6R7zhAHyJT7sDjwSoE… (1,748 chars)"
  }
}