curl --request POST \
  --url https://notification.platform.dev.ai71services.ai/api/v1/notifications/email \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <x-api-key>' \
  --data '
{
  "message_category": "OTP",
  "payload": {
    "html": "<string>",
    "sender": "<string>",
    "subject": "<string>",
    "to": "<string>",
    "template_fields": {
      "message": {
        "from_email": "<string>",
        "from_name": "<string>",
        "merge_language": "<string>",
        "subject": "<string>",
        "to": [
          {
            "email": "<string>",
            "name": "<string>",
            "type": "<string>"
          }
        ],
        "global_merge_vars": [
          {
            "content": {},
            "name": "<string>"
          }
        ]
      },
      "template_content": [
        {}
      ],
      "template_name": "<string>"
    }
  },
  "retry_enabled": true
}
'

{
  "message": "<string>",
  "request_id": "<string>"
}