Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwGW2/8wXuuH+mCwyPrdXucl8+4Qm3bSHGOfLN8JmkvYsXZ2PlgSC2a5oUKu… (844 chars)"
  }
}