UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DQFvAehDtPqx1SYHPn9nPWq25tlm+yMfDP1QFOXAgUA=' 
WHERE 
  key_id = '81f4942c402a61ce885aabc7229819687cacb836b172504fac756437ee6e028a' 
  AND (
    token = 'DQFvAehDtPqx1SYHPn9nPWq25tlm+yMfDP1QFOXAgUA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )