{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xba044cab5a64651812c78c2be513443e381234afcc7e3e019ed95fb3774b2bd7",
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    "signer": "0x829c2734B41d40dfdDDa7868d4445498F10Cede4",
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  }
}