{
  "manageEntity": {
    "action": "Save",
    "entityId": "1763065094",
    "entityType": "Track",
    "nonce": "0x63c6fd62cd0662cedc1a01e91d3eeb88e3449f7cf80543e62345a3f863bd1c41",
    "signature": "0x9c6524c1f39fb3a40bb7e62f37e543d47618fe4d6181213c9527dba8b595ab8a7dae81602dabbd91faa091b77fd1df3367a40c54bed4353daa6db7c6689ab1531b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}