Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwF3W3+Uz1O6yVR/yoN/nk5dVpr+B5oJi6RqKqhnq46KHEBkhW4p5QaQNnw/… (844 chars)"
  }
}