Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwBpJRrm/x70BKaW3b5rWEkx3D3EiopQcphWTw4Vq1WJnX+n1Wdy9bx5aamP… (844 chars)"
  }
}