Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwB4aiFmM4wSANaOWvIh/EIuAAzLL/Tl7HnU7INWj2w/hDEkolPdB9IzLVCm… (844 chars)"
  }
}