Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDFXWCRZNcieTGJh95FRjm1lhWC1jC3zq4ItJo1Uh4GSFMuHc7GU+yC1lNh… (844 chars)"
  }
}