Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwDEGwz32pOLX1jycKI2oXoq5DmXEoxoOQXWONaRYnIoFB+Ee2NiBUkE8Uys… (844 chars)"
  }
}