Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwDMjSi4wPO4fGVnwY+ePrAtEaN7Qd2zHR9OpdAVXs5vGHBSk6BGnjDORdw8… (844 chars)"
  }
}