Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwE7vCu1GUsENtCdJKmG1MJ8S/9BvCe3ARI/8nnmrTf5PBP0aLPTRqZciCl9… (844 chars)"
  }
}