{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xf9c41bdb8a942c7d7eee0c73aed31a3dc509dc5322afed2bfd28680c4f259705",
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    "signer": "0xAE8CAB10EC66c4C6F746A2EDAf09cd7B3a41f71e",
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}