{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xa592d777500939524fcc51c3af4452da0c4b03f95be2a0c57bf7b441dce54831",
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    "signer": "0x8115D0ebFECed33C8DCeFf242B1a6a568F1260C4",
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}