{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1461396807",
    "entityType": "Track",
    "nonce": "0x039380afaeefc7ea972650ed48784a6d3789a794995832ec64930589cbe606cc",
    "signature": "0x90ee13e40e7fcbed01571258126a29e106d0794484df2b8227d883b28ee998cd4e65eb2ef77c74527a52851641ac7b0fb5f56e4ad5cf6cef370101641ee1d5b61b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}