curl --request PUT \
  --url https://api-message.nativehub.live/api/v1/ott/templates/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "Updated Welcome Message",
  "body": "Hi {{name}}, thanks for joining us!"
}
'

{
  "id": "a9b0c1d2-e3f4-5678-ab90-123456789012",
  "tenant_id": "c3d4e5f6-a7b8-9012-cdef-123456789012",
  "channel_id": "f8a9b0c1-d2e3-4567-fa89-012345678901",
  "name": "Welcome Message",
  "body": "Hello {{name}}, welcome to our service!",
  "variables": {
    "name": "string"
  },
  "status": "approved",
  "created_at": "2026-02-02T09:00:00Z"
}