UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gW9QDdlXea+TdDT6aEpTc5XvrxAs9seLwBKZr2uHrNg=' 
WHERE 
  key_id = '598027f689088ec97cde656fad171f6bbad076d9ca9b6344843f0e441290b6b5' 
  AND (
    token = 'gW9QDdlXea+TdDT6aEpTc5XvrxAs9seLwBKZr2uHrNg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )