{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb4ad1b1bc9c0487f986a9f3ec5dc97742d73c19d83eda35cdbb89cdba69c46bc",
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}