Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAGDQJIIuWPcXP4T9N7IRkc4/4kPrpVFEacyYzN1Hg1zYKoflOc0h72Ek6jdCKZ… (1,748 chars)"
  }
}