{
  "manageEntity": {
    "action": "Save",
    "entityId": "1118711286",
    "entityType": "Track",
    "nonce": "0x0db36c6ec91c1ee841b3497cc926cfade466abad9a8b2e4b98e9cdf064f849df",
    "signature": "0x2524c2b703f28513c5bd7a75fc353137ea115a9039b6a8fa96b3f38636439a4750352c81d732eea5cd599e03addac128796b84f3816281bf6fa61a1d76273f7c1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}