{
"manageEntity": {
"action": "Save",
"entityId": "35327584",
"entityType": "Track",
"nonce": "0x286388e95744f8e5f65f2ad144b0cad191c41848d0838eacb89a339fb31631cd",
"signature": "0x85423944689f475a6af4526ab9235d67a1b1722c4bc7bf7fa5acd86ff2bfa91205c1a962ee254f94548d32572178bcba684f7b1ff0573bdd83d08631e35208c31b",
"signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
"userId": "728570067"
}
}