{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x919dd61b0e3c2599885cbe028fc38dc472b6e28f1279b678ae96795f4c6babd5",
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    "signer": "0x9eE8278eD2D464C11c8AA61F1CFF8D02384fEb7d",
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}