UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'kKsdsreAMZtVOCHZEu8XBJpj9pnziLanaE1hZWaLTFY=' 
WHERE 
  key_id = '81af31bdd5786ac0f2550885c4677369c8ba6b313782de8d91b583176caae35a' 
  AND (
    token = 'kKsdsreAMZtVOCHZEu8XBJpj9pnziLanaE1hZWaLTFY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )