curl --request POST \
  --url https://whitebit.com/api/v4/jwt \
  --header 'Content-Type: application/json' \
  --header 'X-TXC-APIKEY: <api-key>' \
  --data '
{
  "request": "{{request}}",
  "nonceWindow": false,
  "nonce": "{{nonce}}"
}
'

{
  "data": {
    "token": "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9...",
    "expires_at": 1622551200
  }
}