curl --request POST \
  --url https://api.cleartalk.ai/agency/twilio/add-phone-numbers-to-messaging-service \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "phoneNumberSids": [
    "<string>"
  ]
}
'

{
  "success": 123,
  "failed": 123,
  "results": [
    {
      "phone_number_sid": "<string>",
      "status": "<string>",
      "data": {
        "sid": "<string>",
        "phone_number": "<string>",
        "capabilities": {},
        "date_created": "<string>"
      }
    }
  ],
  "errors": [
    {
      "phone_number_sid": "<string>",
      "status": "<string>",
      "error": "<string>"
    }
  ],
  "message": "<string>"
}