Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAABJAEAAAABAwFSuYX1zeGsIZgxTBTcrKexVvA/fEMUBOPhMA3ey4dw4S4KYeRt8N5D4DxQ… (844 chars)"
  }
}