UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mZ2/9gHCNq5APMGdaK7HYQ7sAXMnnxoPIpKDCuawja0=' 
WHERE 
  key_id = '7d121fc603eea63d2c5527750d3269009f2157eadbb5d4379da5e0db7c0a18e7' 
  AND (
    token = 'mZ2/9gHCNq5APMGdaK7HYQ7sAXMnnxoPIpKDCuawja0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )