Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAAAAwAmvzwf2iXN/efYuFO2GyWCfqO0WBE4Ck1IoLnYDqBdWxJNN3qGLNsT3wdf… (844 chars)"
  }
}