{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x98284751c01fd73274438fc5dfc8a67e6ae6ad07aa735dc7cc270c964026e022",
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    "userId": "764570642"
  }
}