{
"manageEntity": {
"action": "Save",
"entityId": "572097249",
"entityType": "Track",
"nonce": "0xc4e862a03f538a60e78662172b36714a57f4f0117d886d360c4d413fda49c87f",
"signature": "0x7e77f4f426fa6be1ccf36a5b5e1a040d6d3b2e5d7561482fd03024ee33e51be956a6cbfda9d21e6b9d97c449c8db22f1e1b8007cc85da3f21d3a448bdd6c0a671b",
"signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
"userId": "614212580"
}
}