{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x73cb1d20995727c93f3ef2a9fa001fa8fe4719bf4c1d4569e509449830b70cdb",
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    "signer": "0xaF1b276dCEbca393AaE6eBf692fF6AA6c84d237f",
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  }
}