{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xdbfd3306c8ae740643aa7de828535bec027fd055827c4c040d1a9b794a242e0a",
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    "userId": "648057458"
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}