{
  "manageEntity": {
    "action": "Save",
    "entityId": "532063828",
    "entityType": "Track",
    "nonce": "0x241add80c2a8b2fd4ef896c2f5c10bd7c947ac8db308e0fcf3e57e7377d72219",
    "signature": "0xc4286420bee38a56da211d87f09e554570baa20ea057da7eece7b4ca1c8bf8401633ccc0e1f7e0cfd42a009fca08be2303d271ffb8db00fe7982c41b7b1e72261b",
    "signer": "0xa8E11aa224d2579f5cbdb912866bCE84Eb10f9dD",
    "userId": "951616224"
  }
}