Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwEeU5Z83csu93NvaFMY9HabwUhKKdGdS3rHGhR+DKk3xA/nRr/ogjw9H4Oa… (844 chars)"
  }
}