UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'L8t3Ykcun0znyd37Cabtvx9inG+HgneWo7yIFdIF0EA=' 
WHERE 
  key_id = '902f5d4e6a8687e3c34e791515269310056bf5ee91b93c3027fdfffe227785a3' 
  AND (
    token = 'L8t3Ykcun0znyd37Cabtvx9inG+HgneWo7yIFdIF0EA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )