Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwF+ISxaFqGp/DoCwfvhYCCH7k0LKSjfc6SQh9QmCgH/TiC4q1JyF3ZeuAi/… (844 chars)"
  }
}