{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x22f440aa78d3c20f9d5bea0205ae9566fcd704e82f19b58190c54f8e33991f91",
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    "signer": "0xa5dE7933A10BbeC8b86905819DD03623E2e96d2D",
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}