Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGSdNfcQMuvzrMTOvi26QbMHXXJQYvA7oJBOmFEEsrTTDp9ViShV/9JzyMJ… (844 chars)"
  }
}