{
  "manageEntity": {
    "action": "Save",
    "entityId": "175364",
    "entityType": "Track",
    "nonce": "0x71da3484682f3d8667c09a7bc907c1c21ec8f3067ab4bb251740c4aadda0896e",
    "signature": "0x8e3d615e16b5239e0646cf10bc48fbd64d14ed4b180b2e0c8aaf43c31076c405380381d675329cd5dc0d75f7cd76c39b44d68458747e6ad5b9991ce199397f1b1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}