{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x5cd8a029db4f1e754373ac992224acfea83c89642aad111056801a51c988527c",
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}