{
"manageEntity": {
"action": "Save",
"entityId": "1468132782",
"entityType": "Track",
"nonce": "0x616637539e1f4f62da2651f7502f1f09f9cc00661b2e56aaa86116b3740db356",
"signature": "0x80e63c23028e9dbcf4f3ee8b2e3fffd51327561af02a0aa8c89efb5125eac89f3a3640bf535687d70ac07b1d735bc5ff53a74b9151ae49ae66ca5799bb759cc41c",
"signer": "0x3D4d8a781454E2338c482dE697d6DE1ACc7D9031",
"userId": "599751364"
}
}