{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x74e60f8446b8f7c389b78681b0f432c85f6393c51fade9b9bc86a7a97030e3c0",
    "signature": "0xe3b2eed429a8c5fa366ce4529fb2e632d2e853c20f9a14deb8263074131ca99605fd858f120eda8e7c390e292dbc789aa1dd6a5669057bc088cfa9c3daab8acf1b",
    "signer": "0x2ACda02e37Db2DC08f82aEFAB268F0610974bb3c",
    "userId": "416239376"
  }
}