UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'khfe3llMibvsU+ZxZmFoWwXY37Vd9/OpmjgXN1O8ErA=' 
WHERE 
  key_id = '83d87777962f43ff6cb4c635daddc21e7aeaa6f0d4b765f560da65c03368f020' 
  AND (
    token = 'khfe3llMibvsU+ZxZmFoWwXY37Vd9/OpmjgXN1O8ErA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )