Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFgpzWr+B29Z/6M1bIC8F5EBg1yAuqdLPXrMAlA1jZo7ip7Q+tDOWqv2Ey8… (844 chars)"
  }
}