{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "63872",
    "entityType": "Track",
    "nonce": "0x9049c45dfa21f464fe72049f334e0c321d66b0d26d5745d0c19fc8cabb4bac02",
    "signature": "0x710a241e115c696aabc5a50f3c359b33ea536d253921af9bdbf8fb3c3450c4324a188cf152f25603b597c97da1a08e67d26301d7ec27fb937769df3e13d9590e1b",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}