{
  "manageEntity": {
    "action": "Delete",
    "entityId": "555866037",
    "entityType": "Track",
    "nonce": "0x6cd08fd90c210851c289842e9d73a009080e88c8130a951d45f837e49e407b57",
    "signature": "0xe642e2124d9b2a5cf57340ab039547bf7a906654fc337689887bc191b1ad3700302cd85b1b20d1627846c5f52b1b3afa9b3ba6f842b7c8ff861705ee77ae14441c",
    "signer": "0x7A21b0Be5ea5cda3a838833Ba3B2abF4F65bAdc4",
    "userId": "66156"
  }
}