{
  "manageEntity": {
    "action": "Save",
    "entityId": "2111362335",
    "entityType": "Track",
    "nonce": "0x7abdefed20955eac9577a996ec11a6cb33d8a1e8d60257b6e7ec426c6a53ae38",
    "signature": "0x58096c51bfe8f45b8d17361775c9842ca5273d17cf82c3930b92741d1527c0f941d6083a4d95ce1a596ddf9a69453d6cc1c96ba6d4f71db50fed748f8ccc1ff81c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}