{
  "manageEntity": {
    "action": "Save",
    "entityId": "119927",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4387eae202410136a7e94d2a587518e300eabf2162949e772acb8b02af2f6b8d",
    "signature": "0x93c1fa2a96a3eaf45111e832b28605cebd0cb604d0cdad2d029912bef58658381a45d7c49ecd4d875c116b19896e4a69400a9f1883df3809e7bd5dad1bbaaa0c1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}