UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'c/cMuw5Rim7l3DzbivgWiUDjCrd69cqI3k5ecxtLBTc=' 
WHERE 
  key_id = '593a920d2d7b5f1de0469b9cb589638abbd3b59a8054e16d5415803e8fa1e9f4' 
  AND (
    token = 'c/cMuw5Rim7l3DzbivgWiUDjCrd69cqI3k5ecxtLBTc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )