{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x37bfc74d126227a1b06ef304cc28f57e4c5e485b239e02405b47195caa17b8e3",
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    "signer": "0x2b3B36630C56dd38eF51E26D6F57c64aB97378Bf",
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}