UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/Xs68xE2j7wP4XcDoyCwbdhNe3JEaSfUBpCKnD4Nh+A=' 
WHERE 
  key_id = '8d268eb49b70f491413e41085debc2e9dd87481b491a760609406b2509c9ff76' 
  AND (
    token = '/Xs68xE2j7wP4XcDoyCwbdhNe3JEaSfUBpCKnD4Nh+A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )