{
  "manageEntity": {
    "action": "Delete",
    "entityId": "263643481",
    "entityType": "Track",
    "nonce": "0x028eb78d14917e7e1646d7db4e701b51486c80679a94d4c519589741abc470db",
    "signature": "0x08b48a616d2c1187065a5e4dceee6de6d1fbf6ba46ae7b4ccc67ff386184b5ea1f1a6438370b6e46aa8560584161e3c52e96b49f7cce01337787ab6167f599c81b",
    "signer": "0x5E7ca035944bA78C6Eb25Ae014171cb0E017c6d5",
    "userId": "683518262"
  }
}