Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFFAZzLqBmZhJB5pVi+BjqhriXkldGgKa1MfI8xWR6eI1PH2z27h6i7qu2p… (844 chars)"
  }
}