Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQCkOMGNegJjw63vqoQWz8waH/MNk7mqOPIzVSDnKD2GRy1RO7wSQBKPtsgZ… (1,748 chars)"
  }
}