curl --request GET \
  --url http://127.0.0.1:3333/v3/credentials/{id} \
  --header 'Authorization: Bearer <token>'

{
  "credentials": {
    "type": "smtp",
    "data": {
      "port": 123,
      "from": {
        "email": "<string>",
        "name": "<string>"
      },
      "host": "<string>",
      "username": "<string>",
      "password": "<string>",
      "isTlsEnabled": true
    },
    "id": "<string>",
    "createdAt": "2023-11-07T05:31:56Z",
    "name": "<string>",
    "iv": "<string>"
  }
}