Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFTSTgM+g2C0B6b0QeLlokKsG3wjBwA/m+6ea3AImn4BmyQKB5jHCMH0YG5… (844 chars)"
  }
}