{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "984568",
    "entityType": "Track",
    "nonce": "0xa3461e73723764adf382178e9fc92c3ecd90df802d6cdb74f0a871fa720a8491",
    "signature": "0x1cca3aeb40870f4a7c42f5c9d9e9b9a6cd04de6557cf31e535f912688fb5badc7a97d7b5d40296bf7aed64ad33049331a79bc9ac0256228da1d36138c92f3d4a1b",
    "signer": "0x44BAdCFCf42113CbB67f519e4efa576B336f9bf7",
    "userId": "136844578"
  }
}