{
  "manageEntity": {
    "action": "Save",
    "entityId": "95411",
    "entityType": "Track",
    "nonce": "0x6030ae2c9af5fbf6dbac3da6ae8e7e5f57160f00f0ad7f47429dd4ee2885ef5e",
    "signature": "0x428aeec297f0c26f08f41b6c66cce4b298d4c836e03e48eb669fb1f2f884c5061d2e02d7094e9e60f53c8bf5c90ace08e528c281365b9d01a84aeb26279d41481b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}