Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwG6Jo5lAfpVb5Jk7DoeL0BtDPHB1bxcO5q7w3fCNnw+VTwUT/XzksOFBid9… (844 chars)"
  }
}