{
"manageEntity": {
"action": "Save",
"entityId": "928537937",
"entityType": "Track",
"nonce": "0x68b5587d891747b08ca2c43cbf4fe402104e4de23b2a177dbb2e4a4c1dcc0235",
"signature": "0x6b9b7c770e05acad052ce80d8bab55093654a2c935f7f2ecd421ddb13946fd8d7e9c929bb628f6f940ff6e3c36d89f7d2ef0d592320ed02c1c5a1951d92e43e21c",
"signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
"userId": "280440301"
}
}