{
  "manageEntity": {
    "action": "Save",
    "entityId": "1060695759",
    "entityType": "Track",
    "nonce": "0xce957b8bcf8941c9fab42271f9e796ce50d90127190b2f9cb55bb3221a8d68aa",
    "signature": "0x2d264731166ee329f0324ef8ded5885e1b0502eb598dde2daad3ec92f2dea3df4df369c7aca57449e15f8a24ddcfc39121c4dececdf28a311c47e40d713fe2801c",
    "signer": "0x849938DF063059EbF6d907f55E72C083347C9343",
    "userId": "796529120"
  }
}