UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '3NLm9IVdEK+S9MKvPTihgYZ6inphgvAFZoSzdsk34Dk=' 
WHERE 
  key_id = '6dde09af026b4f5c17ff1b265658acb79158b2aee82df503d0b6810ea970387b' 
  AND (
    token = '3NLm9IVdEK+S9MKvPTihgYZ6inphgvAFZoSzdsk34Dk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )