UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'QhGKTT+RzcT/w1yWScwfhrl3NsKtvav0a4SGCkd0tQk=' 
WHERE 
  key_id = '51b676144cd76f78d8c22d49f8e9a5b4339713b121512f28ebed9e2e8b083036' 
  AND (
    token = 'QhGKTT+RzcT/w1yWScwfhrl3NsKtvav0a4SGCkd0tQk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )