Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFbGNTNyrCiw0A+Mq3rtM4KAGOHevEw8475r6wG9pBobk1+vPYLxbBvpfR/… (844 chars)"
  }
}