{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "740675894",
    "entityType": "Track",
    "nonce": "0x40f34cc96e4af56506496f55284c8f565c11a7b1b3a6f0d4d7739762416d0a0d",
    "signature": "0x89f7aa5b2ed08fd0fc1020ce37ad6ebfe433aa17fbec3dc43c48dd456a17f09b16a79cfcd429e9817c9a1ce2662433507a796a438c1933b3500d7115458946371c",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}