Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwD2HpYWGm2M7YSb4ZLr8mHPLX/rLnR8iXIaa3g1aCir6Wdkab6oYfiXino8… (844 chars)"
  }
}