{
  "manageEntity": {
    "action": "Save",
    "entityId": "796885535",
    "entityType": "Track",
    "nonce": "0xf1edfe81f054eae65cc7c3ae4774af1cc14bbff4ba49775a2b410386debc49d6",
    "signature": "0x275b10843825a3ca88210ce36afc86557489a67f47bd8292e8a1877e926c343979ff059e75e8a53217d925e63e51a9bb5812632542b2a7c1fc7a8c36aacb1f0b1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}