{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x53324362dd41155a94f2d7569a055ff8454a5deb7e7f7e8a01c1bbc5c924e461",
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    "signer": "0x1773D1194f451b3CbEd4A1CD4e94Fb8e6665C787",
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  }
}