Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBCGy50D8nRGVkwBxokoWZtluJ2HIPEbPFyGql1e+by0Q0X6+ruj9jWS4JZ… (1,748 chars)"
  }
}