{
"manageEntity": {
"action": "Save",
"entityId": "1165793627",
"entityType": "Track",
"nonce": "0x0ce71011619b72f1d4786f787e86a5dc786814d9d22ed08bf2c52c464e2137a0",
"signature": "0xd23f08a47a098075c8f5ef621dbf8c7081138c6af8b6989da1cd4ba8ed63b7112b94de36c65fcf49a161720689f8a983684d5262e148de57a601efa1a1968a9e1c",
"signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
"userId": "580720856"
}
}