Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwB4Hx/DqtgVIHAb1Nx9M2izt+Zlyjkb+QSenzINmc3/Bl/QUe5OqiP+9cXl… (844 chars)"
  }
}