Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQE/yeZSW/8JRWajIY2V/HjzAp2sPmWJOUMwTNWqF7u3whSa6ijW+VZQoD1+… (1,748 chars)"
  }
}