UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = '+RauG228RiP74cTXFihPghmYFr24uJQhHhkzHht6DlM=' 
WHERE 
  key_id = '644ee189281184a3e51438679d854328fa1ca0a6849369fdc091142e302fc2e8' 
  AND (
    token = '+RauG228RiP74cTXFihPghmYFr24uJQhHhkzHht6DlM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )