Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwAOmu3aYpKuP/G5Y7wJaXgbjpf9Q9fXAwzRw7XTQmAuMiqDcFjIwxz8nplJ… (844 chars)"
  }
}