UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QcubnPT6zItAK76ZI9MTqvrxliKdRWiMrNDpcJvJ8BU=' 
WHERE 
  key_id = '921c0a42dbca9493f7c7e3ed9d889c2f01ac33122234f05137c655d43623b2f2' 
  AND (
    token = 'QcubnPT6zItAK76ZI9MTqvrxliKdRWiMrNDpcJvJ8BU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )