Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwHAV6ZVQbvGvfs+42gLjNp6uWZ7wj0On9hXBz2VdY0Q7Fy52XOD9GDTnH/P… (844 chars)"
  }
}