curl --request POST \
  --url https://{tenantDomain}.sinjapp.org/api/v1/messages \
  --header 'Content-Type: application/json' \
  --header 'X-Api-Key: <api-key>' \
  --data '
{
  "to_phone": "{recipient_phone}",
  "type": "text",
  "sender_number_id": 123,
  "sender_phone": "{sender_phone}",
  "content": "<string>",
  "duration": 150,
  "file_name": "<string>",
  "file_size": 123,
  "file_type": "<string>"
}
'

{
  "data": {
    "id": 123,
    "sender_number_id": 123,
    "recipient_user_id": 123,
    "conversation_id": 123,
    "message_id": 123,
    "message_type": "<string>",
    "content": "<string>",
    "status": "<string>",
    "sent_at": "2023-11-07T05:31:56Z"
  }
}