curl --request POST \
  --url https://whitebit.com/api/v4/sub-account/unblock \
  --header 'Content-Type: application/json' \
  --header 'X-TXC-APIKEY: <api-key>' \
  --data '
{
  "id": "8e667b4a-0b71-4988-8af5-9474dbfaeb51"
}
'

{}