{
  "manageEntity": {
    "action": "Save",
    "entityId": "2033875771",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0xb702248bf600eda3d610eb5538b15635511101537a67c17b70cc5640f9434578",
    "signature": "0xa75f690f833c5206ac126b605ad5fecce6e39f2bcc4ed1fc45f930abee8f8a075d34e7107b32ce86fa71d053bc163ebead78740f0d7e8e1998cb0cb280aa45581c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}