{
  "manageEntity": {
    "action": "Save",
    "entityId": "2005902045",
    "entityType": "Track",
    "nonce": "0x8b7de91f3529b2233694032bfe101f0f097b39dbbc55051511387baa8cf688ed",
    "signature": "0x09cd8425146f9b1207a118e108d48d1ae7b1271612136b4883a9118c4168e4c44daae451f06d4438753cc4f3bd6ec6cac592b184dfd06177f2e76eafa80d27c01b",
    "signer": "0xF08935327AeC6306C8d0eb92999567e5496848C9",
    "userId": "989073793"
  }
}