{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x946b9c5df2438b45f4605ecf52d5d36c3915a5d7091c60d50b16b8007ce066d7",
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    "signer": "0x30BD156e8dad48bBEAeC56B3FF393a3Ed6C85b61",
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  }
}