UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'esQUWtQpfFUEf9WbvYaGDOqVoBt1ckS2aNSUK+pGLdM=' 
WHERE 
  key_id = '6681a13de4ed2eec716a6359549d610a0b78261205969622d93171db4b17a797' 
  AND (
    token = 'esQUWtQpfFUEf9WbvYaGDOqVoBt1ckS2aNSUK+pGLdM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )