curl --location --request POST '/open/swapface' \
--form 'sourceface="data:image/png;base64,iVBORw0KG...."' \
--form 'targetface="data:image/png;base64,iVBORw0KG...."'
{
"code": 0,
"message": "string",
"data": {
"wait_time": 0,
"uuid": "string"
}
}