{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xee0abeb23517fb432fe2e7c26292e3166185f7d45fb593ea00974051985ade79",
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    "userId": "814449906"
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}