UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'twHI7sOy2iFQOXeG1ILGdkv7JPTXGxJQyM5g81BbShc=' 
WHERE 
  key_id = '791c28e71b9c3ec1d2421c308687a9358bd91fe6201738c068dd8a37eeccd346' 
  AND (
    token = 'twHI7sOy2iFQOXeG1ILGdkv7JPTXGxJQyM5g81BbShc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )