Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwLkZyNnTosNxXokCqvVoajtx4qEbMxj5NCxnJfYcKRnjHSG+Pu0cVSK4cBd… (844 chars)"
  }
}