{
  "manageEntity": {
    "action": "Save",
    "entityId": "1367997025",
    "entityType": "Track",
    "nonce": "0xf602ba64aaf4e7a18a7ae97bcdea1cf45eca32377235df4d73691302b273bbd1",
    "signature": "0xe3fe6792d757776d61d5dc6241e105cbd9ca6be87477b0ad3ac82a546b22f3a535b3fbe4b4e463233bbc101a2201c1dc88b724a5fbea039436dd3a761cd4513c1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}