Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQBgaVVfQ5usMWamRcsuEb741SNeU/MB7FJ7f/pEy6kqDV+jtZcJJk42O2J8… (1,748 chars)"
  }
}