{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "942886",
    "entityType": "Track",
    "nonce": "0xfee4ecfd8975785271b222e2fa506c5b5813a509fbeb77f9dea377cefdfd5be1",
    "signature": "0x989546734ccdd808c78f63d958563f5c9663b4cc1ff2c92f4b7ae15277b1066d589f9901cca6f95359b57153e46ab2963498501634fee6aa0e6333b0c6ad2c921b",
    "signer": "0x981A97dF7c03A51c6fdcB509e0724c3Ca3E8F4Ec",
    "userId": "937728857"
  }
}