UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MrwqZ/GReb2KvXRi1V6xOF5Mfmr7OQLn++ASczIIEZ4=' 
WHERE 
  key_id = '50bb0ee34697700b3de1dc7c0d0385dabe69ac0dd9d3a0df5b16a3933cb804e2' 
  AND (
    token = 'MrwqZ/GReb2KvXRi1V6xOF5Mfmr7OQLn++ASczIIEZ4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )