curl --request POST \
  --url https://karibu.briq.tz/v1/otp/invalidate \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <x-api-key>' \
  --data '{
  "phone_number": "+255712345678",
  "app_key": "devapp_123456"
}'

{
  "success": true,
  "message": "<string>",
  "data": {},
  "status_code": 200
}