{
  "manageEntity": {
    "action": "Delete",
    "entityId": "2016030045",
    "entityType": "Track",
    "nonce": "0xbf01ae043fdf04a1dd1887a5457c943ff32de676783257b2f6204709882dd9b6",
    "signature": "0x39f68f12488aa366f6f373d71fa76d239318715af31fb795e70ec71f09edac370d5091ba8f8d20ad889c38dc423ba49d7f2096725d689dd213932fde44373d7a1c",
    "signer": "0xe39362E50657Aa28CaD9c25b968cA2C2D8cf5A9C",
    "userId": "874277249"
  }
}