{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "698069210",
    "entityType": "Track",
    "nonce": "0x8d6d7f8bb1ece804201b5a1b3196df6979a590ea9c7b4cf112959779a841222e",
    "signature": "0xc6bbc8c3141ed03bac77aba54e894dec9c9fdde5f2ab4a9a7dc2a065707002df1d4ec4d1693e734f660f855cad8ddb7b7a5c719a71238547e491297fe2677c5f1c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}