Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQAB+1PCH/h2u4iM3nTMY8draoV7f0OjETDx3+zHfz8ayHAy4hyQU18Ow8HX… (1,748 chars)"
  }
}