{
"manageEntity": {
"action": "Save",
"entityId": "819183130",
"entityType": "Track",
"nonce": "1792447401039471377",
"signature": "0x7bc6f15e7064e95c0400827e89b16bed445cacefe2e809c78d77775adc111cf631bae5df79938fc5257ed4791ebf52e402c9426d3a593f0630345c5e159f26331c",
"signer": "0x23dF8876fD80368D375d911e3CbDFd15B8e85CB5",
"userId": "827420993"
}
}