{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1038281",
    "entityType": "Track",
    "nonce": "0x719be00f1b41c3e8d56d168167c48b5560d5c4608990c8a4e27d40baf27742f4",
    "signature": "0x24f3933808b77623af1d5abc49d548e1a1cd95bd763bd5cdef03e1351bb53be35352edb89d78f1fd68385f6b1dea3bbe03fa5ae5ac966aaedc35ca999a7b44571c",
    "signer": "0x6dFBefB66c3c46f6bd8f77BC5f2326e41C02A12F",
    "userId": "558063823"
  }
}