UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'vn52SXOSuDKpu66hXwwBeB9vg5WBeoUxv02T1ZDrti4=' 
WHERE 
  key_id = '51239438379c576e09c9372670d02ca516f103f5e4f93bdae796520fa99d66c3' 
  AND (
    token = 'vn52SXOSuDKpu66hXwwBeB9vg5WBeoUxv02T1ZDrti4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )