{
"manageEntity": {
"action": "Save",
"entityId": "2107902924",
"entityType": "Track",
"nonce": "1793090612871887535",
"signature": "0xad43615cb2daf0b0401d0d77d1b7f41df414e5513991c7e022127d243286c00827f3ae682165541531ce140eab0eff1c1e51f103d86f23f51821d18513eb90ef1b",
"signer": "0x23dF8876fD80368D375d911e3CbDFd15B8e85CB5",
"userId": "827420993"
}
}