UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'R6Kqk2LyMhYD/QiVuFOqPAXnPdX4OcX0NJypDf15+GY=' 
WHERE 
  key_id = 'c513af4e35b004559ae809bb97a74f7392ee33893ee1004163e3aaf72127653a' 
  AND (
    token = 'R6Kqk2LyMhYD/QiVuFOqPAXnPdX4OcX0NJypDf15+GY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )