UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'c6Jji1/ydCDbMnD6ecRS0/Yw5jfg4ljCKPJ5JorKhTk=' 
WHERE 
  key_id = '2d51b5276b45d4c61fbf317a9fd42d1c08184e2e5d38b8815b27b55242ff084e' 
  AND (
    token = 'c6Jji1/ydCDbMnD6ecRS0/Yw5jfg4ljCKPJ5JorKhTk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )