{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x85495c53787b80ed1ebd377d552608d42465df8f94a68f02bbfe28a3a3d4f43a",
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    "userId": "922396304"
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}