{
  "manageEntity": {
    "action": "Save",
    "entityId": "985160925",
    "entityType": "Track",
    "nonce": "0x260675c62c43764e1e6b135c36ebf599276120f9ab2ca70ce8992f72984cbb43",
    "signature": "0xce9d35faa14ff78c52ffa7b15de7f8ce19d5a6984c2836a59408bbbf09679e5e3cd401094f060783b255287113c47aa1ca7c8b7b44ef677532e4a54da5fd35021c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}