{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "70791",
    "entityType": "Track",
    "nonce": "0xd2f4f08686026ef0f06667865d2cf462e8cf020c21ae9c93f3820eb1903eb7c1",
    "signature": "0xc4f14f866d5e28e206817fbb31752f8793235d2052a0ae0e5e13540fc7f6525c79b5efd0d084a71e65a2377f8f4bb0d105ee7ba067b9ab2c45695a027d0adb971c",
    "signer": "0x2D566E1DaC6fc148a694abe846B32e39B6584aa5",
    "userId": "890889753"
  }
}