{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1051757784",
    "entityType": "Track",
    "nonce": "0x454e083658f5ffc22026da58e4e534cc2bd7c08481c5c7e865fa4959f8514769",
    "signature": "0x6e5a6dd986a9964bd4d52b53502e48b5ddd1de3514e0ce28d0bb072d6a1bebc60f711b7175fb85ba5a98fdc545fb3f7e97a6193aa83facf886327cf9716632c11b",
    "signer": "0xE22639FD840080b20889373FEa6060B4757eB9c1",
    "userId": "274627911"
  }
}