{
  "manageEntity": {
    "action": "Delete",
    "entityId": "677882507",
    "entityType": "Track",
    "nonce": "0x296143e396b5dab4a2bad36012c9bdc839ee25da85bf1d2842ed6618300c87b5",
    "signature": "0x43a8a1b914abf8a0edd2da4f1455dbd54c12feb8a44084dbb0f1e91f20abe649523c305ea914f58a90c53282b3e395b632458cba36b1932a380b2b408cb6f2911b",
    "signer": "0x5edE4CDf5e928ECF15A1cd01346BF471A6801527",
    "userId": "1246"
  }
}