{
  "manageEntity": {
    "action": "Save",
    "entityId": "1068380805",
    "entityType": "Track",
    "nonce": "0x5ce97231eb67e7eabec478af87a7f54beab72bdfbbdddf29d1de250ccdc54edf",
    "signature": "0x88e5a7c57bf5a55f5cf8651753aa5d374a1c083d10c884543190cade696a04511d32b5459ac88d21d547f93c5227f7dfbcd6c0e7e56438662aafe49c0f8367c31b",
    "signer": "0xa22176a11BF6703EFe39D488aA7cC06aa781C44A",
    "userId": "633924738"
  }
}