{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x17625ae52c827d0f5e48cdf174f27bb93a4fc5621669a1fb2c89343fe1ed46ff",
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    "signer": "0x0B7CdD3c765101cf8e4ebc0A820095DdF6d79896",
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}