curl --request POST \
  --url https://api.okeyproxy.com/ipglobal-api/api/v2/secUser/addPlan \
  --header 'Content-Type: application/json' \
  --data '
{
  "secUsername": "<string>",
  "proxyType": 123,
  "traffic": 123,
  "apiKey": "<string>"
}
'

{
  "deductedAmount": 8,
  "remainingBalance": 742.09
}