curl --location --request POST '/open/upscale' \
--form 'width=""' \
--form 'height=""' \
--form 'img2img="data:image/png;base64,iVBORw0KG...."'
{
"code": 0,
"message": "string",
"data": {
"wait_time": 0,
"uuid": "string"
}
}