{
  "manageEntity": {
    "action": "Save",
    "entityId": "2057949380",
    "entityType": "Track",
    "nonce": "0x9817a2f483fa5fdd5fe3496aaadd4108ff7ce847f8dbe0a13fb80343f127fca2",
    "signature": "0xea96635b7f3a2753928c7ae07fe0d9bb21d9e26abdb830bb2f6aa65c5929b1f1467c9e7d1321310cbdb85d798a778756e1d59de58a127219e1f8db58c407178f1c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}