{
"manageEntity": {
"action": "Save",
"entityId": "147380704",
"entityType": "Track",
"nonce": "0x799af5a2cec7bb417b1f2916e9fa9cc051c3ac9a82d3c3bfa513840850ce6521",
"signature": "0xbc3517106457902dfcca22beed517c511a25c68d69812f107e9efc39ddadcbe852f44a9249cb686b63f9d346ab32d9687b7a837ac1ef655eaaac34bb587de97c1c",
"signer": "0x05aba01c97C4F182D989670622abE9c797782dD2",
"userId": "508263176"
}
}