Here is the Typescript interface based on the provided Javascript Object:

```typescript
interface Person {
  firstName: string;
  secondName: string;
  age: number;
  visits: number;
  email: string;
}
```

Note that the properties in the Typescript interface have the same names and types as the properties in the original Javascript Object. However, the interface defines a clear contract for the expected shape of the object and can be used for type checking and enforcing type safety in code that interacts with this object.
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