Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDrq/6bsbST2TFDbvOU1zXwB+6taH0sUa8suaoUwlgtjX5P5oT0PW5c0laR… (1,748 chars)"
  }
}