{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x87f9d99df216d10f135063c283edd05791b31592d0a51aff7c6fa05eca1c6fde",
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    "signer": "0xe1eAe9Fa3Fef187944BA6cBa5C534e1ea257CA4E",
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}