{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x9a8f933de6c1b2f6176b7e3178c9310c9190312e376a128fa9b01a9467c608a6",
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  }
}