curl '{backend_url}/admin/products/{id}/options/{option_id}' \
-H 'Authorization: Bearer {access_token}'
{
"product_option": {
"id": "string",
"title": "string",
"product": {},
"product_id": "string",
"metadata": {},
"created_at": "2019-08-24T14:15:22Z",
"updated_at": "2019-08-24T14:15:22Z",
"deleted_at": "2019-08-24T14:15:22Z",
"values": [
{}
]
}
}