{
  "manageEntity": {
    "action": "Save",
    "entityId": "2111552232",
    "entityType": "Track",
    "nonce": "0x67ba93abd7dc78ab530f433e61bebb560987cae72db1e3dec28b3afebd9fa3e1",
    "signature": "0xbe37e21c52d8ae5fd8cda7e1d6669d2fc4d6f6d75b73aa2cf655eddcdd825d221460e7c08fdf1f82e425054a6947872fd9ca08b9504d5ae2029a46bb6e8b6f9e1b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}