UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U3kPZMuikcPDx6zO2t8ejFtqxiMQmghJwztYNrB01D0=' 
WHERE 
  key_id = '4d501942c2f81fce762054eeebbb61faaa2d10f98a52187beb66c5e8a299d817' 
  AND (
    token = 'U3kPZMuikcPDx6zO2t8ejFtqxiMQmghJwztYNrB01D0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )