curl --request POST \
  --url https://lancepilot.com/api/v3/workspaces/{workspace}/newsletters/{newsletter}/subscribe-number \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "whatsapp_number": "+8801712345678",
  "status": true,
  "name": "Jane Doe",
  "email": "[email protected]",
  "custom_input_value": [
    {
      "id": 2,
      "value": "Custom answer"
    }
  ]
}
'

{
  "data": {}
}