{
"manageEntity": {
"action": "Save",
"entityId": "1486000125",
"entityType": "Track",
"nonce": "0xce9f465ece228585358ff896d91476dc144c521356050d50356ef88369b93696",
"signature": "0x3f585edf596c505a051bc6370b316f173def645b27d4109b1e00f19accf123e45e1823a5bd0807b59e547ed190bd2a9ca52d1fe700c1999e6e055841e77f9d711c",
"signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
"userId": "728570067"
}
}