{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x2720a3bbba4d49d6ff41bef6192271b338e378f02684018834311402ee09d2e9",
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}