UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'l8qEExPAU3ecXWMI76FxKrnCzyMShJVNxlfgDeU18Ow=' 
WHERE 
  key_id = '68941b785a9b46a7351fdd749b9162b9dcc13867ab88c1ca4a33e6e41580e923' 
  AND (
    token = 'l8qEExPAU3ecXWMI76FxKrnCzyMShJVNxlfgDeU18Ow=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )