{
  "manageEntity": {
    "action": "Save",
    "entityId": "550188979",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xecdfed49a51f718c8e27ddf717e9fe63a498407d4852915988aaf9b5e7a3c435",
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}