{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "1316470465",
    "entityType": "Track",
    "nonce": "0x58599d922e825699443142beb5927f0772a35c241551b3f4990008e45e5f6eae",
    "signature": "0x96da9b0aaade7fe8a3bdae53639cfe113453df49777fef8d81f56cf52e05ddf84c0de29039800840511d05528d60710bfc5d4fb53efc4a6136a1366ce1ebb09e1c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}