{
  "manageEntity": {
    "action": "Save",
    "entityId": "27988114",
    "entityType": "Track",
    "nonce": "0x22fb54f9f2a98bc587945ef488d45f3ad4c87b2fd8156f55106b714c74bb9e0e",
    "signature": "0xbbd8968268dce697cfc23c842a54668447319ed1249f846c3312591eacf469dc2f9286c4f7de961cee2959b225a4ce728ee3431671ff4f9659a09f7b7fb47dd01b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}