{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "975346491",
    "entityType": "Track",
    "nonce": "0x613e682efec29dc5fe071d4a986fab065301a78cebf3fea014b7fccdf63d2fc0",
    "signature": "0x7cece2382dbee57ae4eac4cbdcbf4994f9b388bc4b32fc39fe09f5e462d5f02c5c26a08233591e211a28e26dc516a66da2930fdcad4010f0f08cbaff4d3734901c",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}