{
"manageEntity": {
"action": "Save",
"entityId": "1882014641",
"entityType": "Track",
"nonce": "0xb368b93a049e154f79b6684c203343367704cfb5365ec90f22a669a755b91b07",
"signature": "0x24a91540787754d4c754c5dee6cf09385d97985404aa24b2dcb04be4040d2e05467792c2c7528a8c0b9ff33002ff8867728c5f6c6fef4e107ddc5f4f4f016dcb1c",
"signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
"userId": "571117272"
}
}