UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'dgBcH+mjhjrk7qfGl2UJq4xq44AbAELPPdFa8flKfwY=' 
WHERE 
  key_id = '684cc52724f8ff0148904d08289433990703f9127a958e298f535de34e5b4a6f' 
  AND (
    token = 'dgBcH+mjhjrk7qfGl2UJq4xq44AbAELPPdFa8flKfwY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )