Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwCmM0Y1JGSZJjLcuVyi+m+j0YGTrPOmVuO45bJc75wsQg6Mm0zgx+Z3H5UQ… (844 chars)"
  }
}