{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe197514545afc1731d179c0414a19d1f540f263fc4c603bac3f4157890fc4c3a",
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    "userId": "37158"
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}