{
"manageEntity": {
"action": "Save",
"entityId": "775465983",
"entityType": "Track",
"nonce": "0xc9ab526c0173c91261f0821af6d908cc548aa5fe2a30da95716114c97e24ee07",
"signature": "0x98039a15ee95fa16d335137968fe11e2e7ad3b805a923be08d18b450ccc2cbb90d7cebc080212e2632c9592d7302b48ac9129f3b9bf9dd9813b58ed9ed57990b1b",
"signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
"userId": "35918963"
}
}