Whether we can see the last online timestamp of this user.
Note that if we decide to hide our exact last online timestamp to someone (i.e., users A, B, C, or all users) and we do not have a Premium subscription, we won't be able to see the exact last online timestamp of those users (A, B, C, or all users), even if those users do share it with us.
If those users do share their exact online status with us, but we can't see it due to the reason mentioned above, the by_me flag of userStatusRecently, userStatusLastWeek, userStatusLastMonth will be set.
privacyKeyStatusTimestamp#bc2eab30 = PrivacyKey;This constructor does not require any parameters.
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Online status: last seen recently
Online status: last seen last week
Online status: last seen last month