{
  "manageEntity": {
    "action": "Save",
    "entityId": "2086110820",
    "entityType": "Track",
    "nonce": "0x33c727ca4f6ea52c3fc4ad3c8e2f0d029df8e8125a7a3228f957cd2194937334",
    "signature": "0x45c9e697262c57e23fb2371ea7dcacf8a52c829bffb5cd2bb6ac099387ea82796f38e28d21066c5a9c9bcb01ac80606d46ca69183ad41faeb0aafb89ca9d0d381b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}