{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1722754745",
    "entityType": "Track",
    "nonce": "0xa75cead2b4d89a591c10b7502bec6dd41fbe464ce908ed43ab0328e8df8dec5b",
    "signature": "0xd7dfcbf7608d23a699222e7d8f88ee210ac1e1132720bb7cc34b568c1e78794a118aef2e604245b46013fb210cf6f53fac16aa1841703674d100f5a4936ad1391b",
    "signer": "0xC35123bF05ca0B3A7B333c53E47bcd9f9DA864d4",
    "userId": "33896318"
  }
}