Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwB+W45fMn2Vh9gSZQ3HQEcr2BU0rz9OGZ5mwK0+AEppFXkdocTTu7y1vIJu… (844 chars)"
  }
}