UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'DKZprg4N0dqKPmGUbrn+g4MJIatNqEeFade495ujMsg=' 
WHERE 
  key_id = '51cef7c3999d4a43370656d56baf74fa733a92e804416008ee93f824b6f79e0e' 
  AND (
    token = 'DKZprg4N0dqKPmGUbrn+g4MJIatNqEeFade495ujMsg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )