POST /messages/v1
{
  "to": "+5215512345678",
  "type": "template",
  "template": {
    "name": "order_confirmation",
    "language": "es_MX",
    "components": [
      {
        "type": "body",
        "parameters": [
          { "type": "text", "text": "Juan" },
          { "type": "text", "text": "12345" }
        ]
      }
    ]
  }
}