curl --request POST \
  --url https://api.robase.dev/v1/sms \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "to": "+2348012345678",
  "from": "SHUTTLERS",
  "body": "<string>",
  "template": "<string>",
  "variables": {},
  "country": "NG",
  "send_at": "2023-11-07T05:31:56Z"
}
'

{
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "to": "+2348012345678",
  "from": "SHUTTLERS",
  "body": "<string>",
  "segments": 123,
  "country": "NG",
  "carrier": "mtn_ng",
  "provider": "beem",
  "provider_message_id": "<string>",
  "provider_attempts": [
    {
      "provider": "<string>",
      "attempted_at": "2023-11-07T05:31:56Z",
      "ok": true,
      "provider_message_id": "<string>",
      "error_code": "<string>",
      "error_message": "<string>"
    }
  ],
  "cost": {
    "amount_kobo": 123,
    "currency": "NGN"
  },
  "test_mode": true,
  "created_at": "2023-11-07T05:31:56Z",
  "sent_at": "2023-11-07T05:31:56Z",
  "delivered_at": "2023-11-07T05:31:56Z"
}