Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwD4reaY5wXgwA7ZY8DlpOrkVAO0Rvd74ZN3BfG4Q7RNAjllGN9vOja5afvM… (844 chars)"
  }
}