{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "947961351",
    "entityType": "Track",
    "nonce": "0xefce9add79deeccac07a1784f88f9765f5ab1ed192a1dca2c1c5de25d308516e",
    "signature": "0xe7d7d3a5ff67d13329e7f5772d735d38af0f5afb762cb3b9509de625d75f955f3c473718c90a9dcdb0f529ca3ad6a9b93a828c078450e3b9acba51720a02a70b1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}