UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'aKox20iTQLkrEX1x3EBYoi46vFViLO/MfTMF5vFncC0=' 
WHERE 
  key_id = 'c8959ae58b786247c10be3a43c80f6fc3501de04e430eb32607e6a22e46c879e' 
  AND (
    token = 'aKox20iTQLkrEX1x3EBYoi46vFViLO/MfTMF5vFncC0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )