{
"manageEntity": {
"action": "Save",
"entityId": "1932776277",
"entityType": "Track",
"nonce": "0x3aaacae05f3c0dc677ca2489a5970ca926e59ecef9bcde4e28e9c5cb30c5e96e",
"signature": "0x6a3427cfd0d7a2aaa0c8fdb380c0273310179fb39c980326b4ceb9f60a985a3e24e7a26f4ecaff568ffffa58b92b5e05a2885b3fc809f29e4800014ebd985c991c",
"signer": "0x569a23a5D506E4404139fB7510738Ee5b80F5624",
"userId": "280440301"
}
}