UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'REp6+3Pw6AG6jdWNaWU38dEbbTmMKbbz7MPl3a0KoUI=' 
WHERE 
  key_id = '4c6dd11448d69877c727b3d80748c419b1e8990f2e3954939b93cde32c683e25' 
  AND (
    token = 'REp6+3Pw6AG6jdWNaWU38dEbbTmMKbbz7MPl3a0KoUI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )