{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1883394996",
    "entityType": "Track",
    "nonce": "0xfc3d9bef53df4a18cc7762dcf07eeb6ca19a246d16ed967243de91a3c3814311",
    "signature": "0x499c090a4a8f22ba2489ccbb7b4ac61e8016f5af714d8bc2e53d542dec3a1de4743d50be01e4952759cce8f51a066164bdd58a9651c5dcfae81b9bb0abdc7a551b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}