{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "354869536",
    "entityType": "Track",
    "nonce": "0xd38555e9918ae127b4b71b30e680fdba597b2ace959c1ef8d855713527a37b40",
    "signature": "0x9e0379664871d6bc2bf1378cb33359d256712036e34b662afee85192e32cda3855709f070b525551db67a1e59918eea1006310cd8ba038c52ea67ffb545406e61b",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}