Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDuoMfcksv6XHez8qdcuS4jAP3+sUaYwI/VEXlRzELDNiDmqLwI1cZ9X5z1… (844 chars)"
  }
}