Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwB/QUKcP8xsh0sOBTnFw7Gmbntm8mQlJJ7aHARzp3fG5jW8IKejSM0pGLi/… (844 chars)"
  }
}