{
"manageEntity": {
"action": "Save",
"entityId": "113566892",
"entityType": "Track",
"nonce": "0xf885ddf71615cc9ad50078fc6dde673b191fa3c32d6ccde613f5d12b2fed74b2",
"signature": "0xea15499450088b7a54b521427f44a7d3fd5780fe0827be94b4df5dcea72f554f0de12502d0bb46992c7ab6993304cff5200934aee79a8cceb36422c5dd2ca4fa1b",
"signer": "0xF7628Ea36C0C266E289b7538b033fB949A6C31ff",
"userId": "386745392"
}
}