Scientific notation used for numeric attribute on RN/Android

Hi. I’m using the React Native client library and I’ve noticed that an Android user has an attribute recorded against their customer.io user record like this:

createdAt

1.6515671E+9

I’ve exported that user’s data and in the attributes.json file it is represented like this:

  "createdAt": "1.6515671E+9",

When I look at the same attribute for iOS users, it is correctly represented as a numeric timestamp:

createdAt

1702984243      Today at 11:10:43 am (GMT)

and the attributes.json for that iOS user contains:

"createdAt": "1702984243",

This is how I call the RN library to set that attribute:

CustomerIO.identify(analyticsId, {
  createdAt,
  // ... other attributes here
});

The `createdAt` value is always a number at this point. 

Do you have any suggestions on how I can resolve this? It looks like there used to be a similar issue with the serialization library on Android: https://github.com/customerio/customerio-android/pull/56 

Thanks

Lee