Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHp7PEi1zJiOxEq8AhkgSQfIe2CVQi/SwnXmWGKCyp4DxsbZDy6krweE4L+… (844 chars)"
  }
}