Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwCR+g/G4VpThvPWkHNrTT8/FZ8XeJgJdVKwkWfu2ZCW7lWocRtdtslgD3bc… (844 chars)"
  }
}