UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'lSe6u/jdewW0TLDS6EDc9TXabFlpHNTiNdD6tldDSXI=' 
WHERE 
  key_id = '81656ca7c194fab94ba8813dc602c40abf97186b7e1811268251c933374b2959' 
  AND (
    token = 'lSe6u/jdewW0TLDS6EDc9TXabFlpHNTiNdD6tldDSXI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )