{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1872119975",
    "entityType": "Track",
    "nonce": "0x86a8e90d02e95c2d96ebaa4ea5a125b22d5e95887a2bc0bb49dc68da7892f3a5",
    "signature": "0x626c639417c2a48c80f923bd27bbb50e6c562cdc9e419c81781f1f06b1ac950c49f89c6e6108bc8a06e3731285127187c138e7285d57e8c20f6a52cafc2df4e31b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}