{
"manageEntity": {
"action": "Save",
"entityId": "1784098784",
"entityType": "Track",
"nonce": "0xe730ac0ab7c3e979d2edbe99efe3b45bfd1519a7cfe38fa0ec97b521ed564529",
"signature": "0x0fe6fe4ab15a3b9cf934440a7ad55e0b968a93b26fec8e2da3bdeefd5d8afd9a6ae298314a629f1513af0b39929ba58016add6d0d067fc67baecb3c0c61f82cd1b",
"signer": "0x98591a180A20DF036EB2C9D2c24B449E65939Df5",
"userId": "338604526"
}
}