UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'SKKLh8ayzdazqM4T6XGzjxqExjcM3zKwvd5jCcgPeI4=' 
WHERE 
  key_id = '87973e4ea86f84904c65fb6cc97afe407570a68e381745904f0bce6b7fb85873' 
  AND (
    token = 'SKKLh8ayzdazqM4T6XGzjxqExjcM3zKwvd5jCcgPeI4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )