{
"manageEntity": {
"action": "Save",
"entityId": "1928330128",
"entityType": "Track",
"nonce": "0x3565a13878f3ae403435b298b5db67f3296f53282d22b39aad548807aa155080",
"signature": "0x285565014b494848b3d44af92a9393f8ce0097465af4721705079490294d97b951cf8b22c88db2fd818479e2a76406da9eae85bd38cdf987a879cafc589d64941b",
"signer": "0xD55A9f22e6A9F818B2AA2D1E9Ea5E13C4627864c",
"userId": "260152078"
}
}