Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwFyfuB8dwb0Kgg4Kp7JZpFD+LYE+P/IpJauReztxu3F7BH7E1fMlO4utRGC… (844 chars)"
  }
}