Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDXJj/2lXcCom7/zyU+2VqWhV23ptGa0HlbzLLG+DX5wDSDOoJGzDOSGwz/… (844 chars)"
  }
}