{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x4b24c2a327c6afbf59bd72b4b81bc5462aa44a9c4e48ea4cbe4fe95520dc0835",
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  }
}