UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'fbrZ4NRgIJGbRDc/czmlwevb2aLs/u7c4rQn3QL6GFA=' 
WHERE 
  key_id = '334298ea123295ba378fc0de841d1eb10292af50a49377848a65ef2d1a4f7b59' 
  AND (
    token = 'fbrZ4NRgIJGbRDc/czmlwevb2aLs/u7c4rQn3QL6GFA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )