{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "44578852",
    "entityType": "Track",
    "nonce": "0xb4b34b2b1cd141049b952a0118cd32f2c548c82adcaf6b8e09e29f51b6888901",
    "signature": "0xcbada66e8900bd874ca1c9fd4e393695e2ac26f2b5b79418c02bb69d8f879b8348c4a620140c7cdb2fe86bd2949482faef0575ef240bc6af1020ba2c8055d4821b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}