{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x82cd4493351b1d43e15f8c1b782941c679b539ac11c9ad0a88f2a34228c74647",
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    "userId": "974403669"
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}