{
  "manageEntity": {
    "action": "Save",
    "entityId": "1828956713",
    "entityType": "Track",
    "nonce": "0xadaca3637fd73f2f7f09756e2041f699f0065f6e75caa0d13cecee4885907e39",
    "signature": "0x47c935290a6f5121652d3b7c18b2f2d040566a8127f39f282de4d8aafce466481664ab8931dcd262067c922f1417c9942039324ceee4241938437f1d0e0d416f1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}