{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "19182878",
    "entityType": "Track",
    "nonce": "0x513cba4ce5921957fa53f626006204b2b7d04e5c28749bbabcafe378488d7c05",
    "signature": "0x64252ab7a4eec4e45eb50e0fd3c825d0c684f3d3a0e7154e915d8404286c71716be866bcf8ca1792f982c4b29a01faedb8e677830c97205a4c583cdea1344b1b1b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}