{
  "manageEntity": {
    "action": "Save",
    "entityId": "1062070",
    "entityType": "Track",
    "nonce": "0x2316d64cd60e94a0bdd0c68a50a3d5d2c77fdc920eed2084019e593448f3ec46",
    "signature": "0xc5db8fab23b30bacb57a127a2b525a8abf9f6ca7b78eed2fb7d6afa06d59e2ec2143c71000f805932e2086c154d6a2f32a212fb65e876d4f5a731cfe1ff146351b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}