{
  "manageEntity": {
    "action": "Save",
    "entityId": "1092233",
    "entityType": "Track",
    "nonce": "0x00c5f8342d3ab356ba28db5b1eeb9fd5e6c6f19de51e0bea164c8c0fb4511876",
    "signature": "0x448abbdc16dcbeca91d9e17ceefe19043b2ff6dfbab8fdda6ed032d28047b12c18578aa2b2f1d9a068dcdaf22cfdd354bcd79b57738c280c850973f644ea423b1c",
    "signer": "0xfa56a6A4EC30B5A84B608c47da5C182E42Ff26cf",
    "userId": "990052786"
  }
}