{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "180757",
    "entityType": "Track",
    "nonce": "0x205503bb294e1c597c99d07e524ae32e403ce7f28a483931e3153164bd346bcf",
    "signature": "0x6f89ca75452c583a8d089455be911c5ff04af5da457a3a828907c75ca0f6e4f2603903767bc6546f85928f4d589aee9382a1f3029cfd9ed021c53ff1837fa86b1c",
    "signer": "0x356cabAA7E8435B742370d31C5060c2B3E8CF6B0",
    "userId": "54292"
  }
}