{
  "manageEntity": {
    "action": "Save",
    "entityId": "134654",
    "entityType": "Track",
    "nonce": "0xd51ba64697230612eb89b07df2646eb677dcbec2c8d01bdeb9c6a5c1e78aa80f",
    "signature": "0x7e219d984d35baf0a436f095cef9ae484fdb26f8536276f63f6e624891b1960a6d8917f987197f2c1d0f63fb836a67e833e5848acf5821195f50f700b7233a321c",
    "signer": "0xCC89cD92c6e13cFe8FaD7993190B2DD0899Fbb58",
    "userId": "780759970"
  }
}