UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'NQu6LVCnijvduznFOfsDNURHUik0GUcTCWtm+lyUiFw=' 
WHERE 
  key_id = '51bc27053a65dd475fb6d1ec950de51759e9a777e16916f5b5ee0b46d56ca7b2' 
  AND (
    token = 'NQu6LVCnijvduznFOfsDNURHUik0GUcTCWtm+lyUiFw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )