UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'KlSkq1qssNd3sH4ZcTId7X0CCuy5cnnF5MTVOTUNmKU=' 
WHERE 
  key_id = '3b840f1417b8758f8280c0931e85b59bd8dcd1c71d0dd16cc2c51f8478fa10e4' 
  AND (
    token = 'KlSkq1qssNd3sH4ZcTId7X0CCuy5cnnF5MTVOTUNmKU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )