{
  "manageEntity": {
    "action": "Save",
    "entityId": "1060146232",
    "entityType": "Track",
    "nonce": "0xa7efcc0a091fc66138f1891e2c5c9a4b3093fd6264ac43b4ef23ee018aba82cc",
    "signature": "0x7a4408d2c6151ed0e7a9563fdae8662d22b5cbdcada387a2c35ad44bd30a642c7aa9d251b5e6902b67f33691bb337d90c412bf9124d0883c6cf4753bfa32d2401b",
    "signer": "0xC6f6979d7215C4611Cd7aDb30a42B2812294262c",
    "userId": "55290787"
  }
}