{
  "manageEntity": {
    "action": "Save",
    "entityId": "24863",
    "entityType": "Track",
    "nonce": "0xba915e4f83b809ae3cc8bfd5e7f026d4aed707924bcc531ba1fe24d7d81819fc",
    "signature": "0xef9397d9d33cd1fe79666eb5b4adec9901315e692c0961decc6bbb6346eb442317a66647803e6a2444b87ef4ecbdeba62b97153a1010a0eb3cbaab2f566d78271c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}