{
"manageEntity": {
"action": "Save",
"entityId": "48145112",
"entityType": "Track",
"nonce": "0xd89186e5d6d484ef13dbf372befdaf024ab8b39465e333605f5b94e3ff136b10",
"signature": "0xde6b0e7523dee7fa7fd2e71d7c335740e3b96804a94adcf157c696ec6c6be1aa188f7fa1f92c785e4304e4c4898bd6d93a7fb280d1f47119d6bf41f323e14dbc1c",
"signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
"userId": "614212580"
}
}