curl -X POST "https://{tenant}.sinjapp.org/api/v1/messages" \
-H "X-Api-Key: {tenant_api_key}" \
-H "Accept: application/json" \
-H "Content-Type: application/json" \
-d '{
"sender_phone": "{sender_phone}",
"to_phone": "{recipient_phone}",
"type": "text",
"content": "Hello from Sinjapp Business"
}'