{
  "manageEntity": {
    "action": "Save",
    "entityId": "1059094",
    "entityType": "Track",
    "nonce": "0x679229665681eed24691bf65d50183acfd5ba8a3dab30f4bd1636754e73637c4",
    "signature": "0xc0d9635e6cd8479fcaa14f89b0a4017a46a2ad9e441008aefff36fad59ed1f3d61a8d809cb071fa55f824a6f1627696eb259e0ad587e02026fc320f2066aa88e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}