{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x1a463f4fbe694b8ab31d4aa3427aca8fcc00cd0695ce2b7502096d3d9e05d935",
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}