{
  "manageEntity": {
    "action": "Save",
    "entityId": "1061106",
    "entityType": "Track",
    "nonce": "0xd678e64116e2e8a8cb4c8a8306a288f2e0b2f3a648747278709c84b76ebda960",
    "signature": "0x6c732e7768b83daf5380b1e1a4b232cfd8ac4a02d69c8feb569bddef64d68eaa368099359d0e1ceaf6bc6ead7e1f4aa9b3836641f7552b45914b31f6b1711f301b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}