Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQAHYIZP0h7CBPp6rE9WXqd/STGMjRRkeOJ3/Q+Zebty6yv5uew6Y7nxEeC+… (1,748 chars)"
  }
}