UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'FPcdBsnzs7sjz+0fHjEuwzlwmQNL6pLUb7UwAfbQH/o=' 
WHERE 
  key_id = 'b642a6ccb2626c9d406e7852428d7338ce64c5ac5cbe55dfc27aebd760437500' 
  AND (
    token = 'FPcdBsnzs7sjz+0fHjEuwzlwmQNL6pLUb7UwAfbQH/o=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )