{
"manageEntity": {
"action": "Save",
"entityId": "1397298370",
"entityType": "Track",
"nonce": "1792323375198151891",
"signature": "0xd5048b15cf4ad859e351033b2121a87635cfaeb03c43e254eba937bfcd466ae420ae4950b2ac28cc30bb5d8cf6247cd73cb3e1f0beb8bc316d0d693fd9b45a8b1b",
"signer": "0x23dF8876fD80368D375d911e3CbDFd15B8e85CB5",
"userId": "827420993"
}
}