UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a98vdGe5mR5ma9Rq9NEZczn267SYi+RcOBcESsnOVIc=' 
WHERE 
  key_id = '691f45326ab8ca9558222733a7c68e131cfa11b112da53ac6b76a56499ef997f' 
  AND (
    token = 'a98vdGe5mR5ma9Rq9NEZczn267SYi+RcOBcESsnOVIc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )