{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "377363",
    "entityType": "Track",
    "nonce": "0x0e59b642b8ebf8eae2ec85ba0c2145d8b0efb1d885e41cc42f5d01dd3782ab62",
    "signature": "0xb29448e91cef6c51a93ac2eeac70197033fc3fe44b89bb943f79bc2f18152f406e0debd2c3912921d3168f281b3902e1b08e48ed19fcb4580523f482cb5b34b21b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}