{
"manageEntity": {
"action": "Save",
"entityId": "1199753787",
"entityType": "Track",
"nonce": "0xf25dcf89027eae986c23b7d577c2654944ffafbb20b5ddfe523436dafd071e65",
"signature": "0xa69247976121a9ff833cbcd29339ea7e5927d5b5200b52ba38c1f52b93b36c197207cc4b0b874f128bea86cd7a492fae71cab308f58fdaa526ddf2176a1b810e1b",
"signer": "0x26Feee0AaDc0e2d8f7aBEd5cdb0bCD7D325F618d",
"userId": "354535"
}
}