Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQDDU/VkzzQZ5dKIuXsj4uQcXYd9eT3f9njgDJRRxA/6YVM59Bb1Y6t2vzgg… (1,748 chars)"
  }
}