Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQAE28roKP2Nrfyfnm5/vyn+xJgfBCkfLxE4/W3SmWYpen8fR8hHVNMeXCu8… (1,748 chars)"
  }
}