{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xca5124b30781e8f62dcf66710f4b2232afae1903fcf0d9077d67e85a3966118d",
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    "userId": "227922055"
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}