{
  "manageEntity": {
    "action": "Save",
    "entityId": "1114071",
    "entityType": "Track",
    "nonce": "0xd389cb679f52f1613b010090100283cc4f86fce060897bd24bce669133deb1de",
    "signature": "0xf1034c156bef8277a1e1b0a918540ee22f073b582835b68a3e4801e8a87084fe4871676d752dac200dbd9b62394731aa031b5e0bb49bcc7b3a61d0bed5efc3151b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}