Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCNKlJU+KoeJghQoQLWXN/CWUsUJY/c1uMOynNTyMfy1nV2mTSGRLIH+cw+… (1,748 chars)"
  }
}