Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQE/Dm19/GD1d+h9knoI3/FS4ayF6gtCBeXQE4GlMwu9xhqPb65+GyWzb7xZ… (1,748 chars)"
  }
}