I think this is what you mean:
Code:
<table name="upa1d_session">
<column name="session_id">0131557d5e9a56885080c229dc3527b9</column>
<column name="client_id">0</column>
<column name="guest">1</column>
<column name="time">1478476189</column>
<column name="data">
joomla|s:800:"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";
</column>
<column name="userid">0</column>
<column name="username"/>
</table>
Though I don't see any sessions referring to my userid or username, I don't know if that makes a difference.