UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mea/O4XUdqdcmnqyRQaEOZL3nUsk0VJ75MiMS6w6sCc=' 
WHERE 
  key_id = '15e79797afac0737a459cf5883e8c5a611d58a21a24c6f29167abeeb8101c908' 
  AND (
    token = 'mea/O4XUdqdcmnqyRQaEOZL3nUsk0VJ75MiMS6w6sCc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )