{
  "manageEntity": {
    "action": "Save",
    "entityId": "4281",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x958f208960fa63d5aeaefab53ca753a2f1d50eb460fabc1e4ecd5866a83f8110",
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    "signer": "0x098b5846E0b52b2973B88a998B9382EB990e8650",
    "userId": "686324705"
  }
}