{
  "manageEntity": {
    "action": "Save",
    "entityId": "1046315",
    "entityType": "Track",
    "nonce": "0x4b9d33e0d1df587b9f35e7f9fd1867616d8e924c4b89cd7e4029870f8cd6d261",
    "signature": "0x7b8d47e81bfc58de56143d542d2b27aac91c8de830ba9479fd251811ee1b9bcd41f98587ef1ee5ed5b280915b523270bf930949b0d0282ae944375a3460104821b",
    "signer": "0x06F989586c5477333A41f6057f224Df79903862a",
    "userId": "24240642"
  }
}