UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'PY1/UtRa3HDwf3BTqF4NT9Mb2r8qnE5fyW44g7w4XA4=' 
WHERE 
  key_id = '28a594a0ecc90d832362ab0f621a31c3d68398769950789493b639c86e3f3e51' 
  AND (
    token = 'PY1/UtRa3HDwf3BTqF4NT9Mb2r8qnE5fyW44g7w4XA4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )