{
"manageEntity": {
"action": "Save",
"entityId": "1029540956",
"entityType": "Track",
"nonce": "0xfd1909c4a933d149863edf79b3a8e8feeaed313a80953e49f9fae29466b286fe",
"signature": "0xb3ff201d540bc41855746a28d2db793414931e4c1abe2f0483cf8c18e77135416e39d818959c3624e40472028e58926cbc4aab75878042ed2fced56b1d518c8d1c",
"signer": "0xa82670FA9B885fC5E3790543627F6F4A7A5e6D65",
"userId": "797142451"
}
}