{
"manageEntity": {
"action": "Save",
"entityId": "713433072",
"entityType": "Track",
"nonce": "0x279aa68a9f99b3cf4ea3f4a67def3c666ae1a37c1503489af380f2ab61d94332",
"signature": "0x6f4c3c171612707235506ca054a0cdb85700b0d0a7908a37f04d7abb8f9450746a998ab053570bd5a94e49ec03c50ced30327f0623e907abac39df42aa95eb2f1b",
"signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
"userId": "636236864"
}
}