{
  "manageEntity": {
    "action": "Save",
    "entityId": "436643290",
    "entityType": "Playlist",
    "metadata": "{\"is_save_of_repost\":false}",
    "nonce": "0x6f6e9c8db22cd1f1a043b665c87e891d780e190517b3cd8ee296d405042fcf48",
    "signature": "0xef32639218f43f2fc3aa98c58b0b038078ffd5034d0027c1c2fbd2ce5f6a880615f8dbfdf40376fb23e2a8ab321f5260375107e76d93f3d15bdba841671b6e0f1b",
    "signer": "0xE7D37531a757aEaf8B2c8037a79C03819edc20Dc",
    "userId": "870684573"
  }
}