UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KskU5ReAO7ugwR7G4GudbnXaB+XZtGznpcXMXn8GVZw=' 
WHERE 
  key_id = '31d83e3374ab54ef5195d68393ae2fb534a04c0e13fa0a9e2bd274fd9f163a6f' 
  AND (
    token = 'KskU5ReAO7ugwR7G4GudbnXaB+XZtGznpcXMXn8GVZw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )