UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'h2Hmd7VTzazorPyvCtk2rNE/8mn5lye4rTVjoCpsLfc=' 
WHERE 
  key_id = '51b7db357a7cd2cd6d00aebe0fec345251d073fda31d33b203b0bf88220b5c1c' 
  AND (
    token = 'h2Hmd7VTzazorPyvCtk2rNE/8mn5lye4rTVjoCpsLfc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )