{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "130625",
    "entityType": "Track",
    "nonce": "0x842ac0b1df8b3c53b0967b54965a868136cecd90ac554914c3ea3389c4235306",
    "signature": "0x9783d3f2213d8fbd45239e919a4ee7a37af7e1d336b9465cefc64913116e150f4ef17c2d133806a66146e5539809fb3dc9c96e411a0bd38c59e7db5978f6460a1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}