{
  "manageEntity": {
    "action": "Save",
    "entityId": "128285",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2dfa4427506a3d7a62ef33cdff1db542ef829077f256946e7ec66dcb68231a9a",
    "signature": "0xc97a00847e629bae76da6c29444a6ad69e557d03df06f36bb17114343da96e905731baf5261fd4821095397c296e31a18782d340ea01e6855f35e23c311a22851b",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}