Constructor: readParticipantDate
Contains info about when a certain participant has read a message
Attributes:
Type: ReadParticipantDate
Example:
$readParticipantDate = ['_' => 'readParticipantDate', 'user_id' => long, 'date' => int];
Contains info about when a certain participant has read a message
$readParticipantDate = ['_' => 'readParticipantDate', 'user_id' => long, 'date' => int];