{
"manageEntity": {
"action": "Save",
"entityId": "963568",
"entityType": "Track",
"nonce": "0x06fa660eeb46ef6ba2e57acf05f886f29e96e0fe281952579af60ccf478ebd5c",
"signature": "0xf38f6f3819f49940822b56723cd620b5d5cb8e402395d507e3fa8855745bcc86620277f4e6f0c18898890af03e68512a6e6dd22f7f7d0c9854e8dfb779cb2bf71c",
"signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
"userId": "77551267"
}
}