{
  "manageEntity": {
    "action": "Save",
    "entityId": "1316699369",
    "entityType": "Track",
    "nonce": "0xd1074009c52dbdcfce94ca868311177b75ea4228243dec1cbc9c9d0840a2481b",
    "signature": "0x80dfe104c187f36bad8d080b4d5fbf7c8f1cdc6335778f91c1cbcded4199b79d334b156ba7611ae233f34f130e7166c237de67b3b5ae815d1fee2d938f9b42f31c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}