{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1366540340",
    "entityType": "Track",
    "nonce": "0x8a45d45d0fb07f3468e7446ab4df4e1ea6adcc7ccecaee922e9e31f9df13c5fa",
    "signature": "0x83ddcdce003ac5a3fa772c1988f716e2ce852c69c6216ab6f75283900d51aa3d66d8cb2b733d9532319ef2d4601490bc573b86d6d5abf160313ee8a32889abb11c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}