{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x21729992d64d1b93108dd5538402e0033b9efbecc6763a184ed26c1d89fc20bb",
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}