{
  "manageEntity": {
    "action": "Download",
    "entityId": "323253",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"city\":\"Szeged\",\"region\":\"Csongrad\",\"country\":\"Hungary\"}}",
    "nonce": "0x2813dc5a6da3380a1e4c956fcc62acde032851070215ee4e1a81cc0abef13989",
    "signature": "0x6317341be1a2309560a2f1a09e4bf027067bd44c5064fd1d812b83ef3a6dff851142664e1c43c33b8d02da51a3ca6a9bd16bc090d2402fe29f200dde697e90981c",
    "signer": "0x4cd4EAe6AcF1d2fa1Fd61eAce803597613DbaD92",
    "userId": "114543"
  }
}