{
  "manageEntity": {
    "action": "Save",
    "entityId": "36048",
    "entityType": "Track",
    "nonce": "0x11cb6251a29a54eebc8095413908052c925c742ad3efab52866c201eb81e4dee",
    "signature": "0xccc8283866129e0e60141569bb99c870b626289d508f31391c341ce5cd88013a6ee0800c3f86d161ea12332fb8e609a0738439e8497b23b167f8bde98eff30491b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}