{
"manageEntity": {
"action": "Save",
"entityId": "1261288881",
"entityType": "Track",
"nonce": "0xd50f6789ad3ff05a9c1480466360d852f7cce28b452e8d890188018c2d64f280",
"signature": "0x02feb1c893b56a256b156f080fea020e01920b47c68070ff2cdf0b904290c8ed3da8eaa42a06a8292de77a3e9dba58a1529a30e1d848bc8ea57f899d41fa86301c",
"signer": "0x98591a180A20DF036EB2C9D2c24B449E65939Df5",
"userId": "338604526"
}
}