Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQB5h6j1pNXGjB5rDLDUU13o7S3aZeaQBeXORVu48ONwawACG+wfUf1txL2T… (1,748 chars)"
  }
}