{
  "manageEntity": {
    "action": "Save",
    "entityId": "93729",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xe219349cd63e11a2f24c17aa83d954b770f2c2203f3bee3addd44481226c1064",
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    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}