Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFvpQ8jbMclKUbvbJC9e5wGe/6PqSUjfJ8tEO0aBQFV4wrQ6ArvG3okS3hz… (844 chars)"
  }
}