{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x263d6238cf005fe39aa5434c15b3bbc9e4669b6974520585a35fd49d29c2ff1a",
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}