UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'b6JVgM34WgbvWumNCDYVWCGy24lTPDTlrdoLXQId0XU=' 
WHERE 
  key_id = '79ed869b571f72a25971bb65f4025661567738998bcf63bb99acb40202bf797e' 
  AND (
    token = 'b6JVgM34WgbvWumNCDYVWCGy24lTPDTlrdoLXQId0XU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )