UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Qw0XgTDZgIWIMD1Ar+VjpugmmfIlrQl7lEYirbmax1A=' 
WHERE 
  key_id = '3a1af5d68a4d04a98be96047328afee517a7b5497fd27e75e2e9df826f70c28c' 
  AND (
    token = 'Qw0XgTDZgIWIMD1Ar+VjpugmmfIlrQl7lEYirbmax1A=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )