Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwE/Cw2KB8UxBeLe3jdRGf2MEYDu9zTkYPpma4cKfEVBFniR28iy7IbOdZEU… (844 chars)"
  }
}