Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwE8MNt6lI/AGUCSY9RDZoLAJyWMRH9zHYG1Lf9KAZA2dnvtYl03M3+jxOPJ… (844 chars)"
  }
}