Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFAA/IwZPZYnmL9oqjlb0Ac11POs/T6w91MPcQVBTyLKzRijdFQHDq3Eofy… (844 chars)"
  }
}