UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'rF+jH2foEs81/+SiwPaZ1AyRpVQW7eWmeyX9yHJe/dw=' 
WHERE 
  key_id = '75a997cae66371e52059c82f7ed1cb7c98af47632e26d7911869d3e02038f487' 
  AND (
    token = 'rF+jH2foEs81/+SiwPaZ1AyRpVQW7eWmeyX9yHJe/dw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )