{
  "manageEntity": {
    "action": "Unsubscribe",
    "entityId": "16445",
    "entityType": "User",
    "nonce": "0xd2e31db95f79903b68f1b1803667ac979cdf973dc83f51f19bea331f038c6f0a",
    "signature": "0x791eaefb341ad343a7899650069adbd0982bc1695680ffac4bcc1c968130f7e66a633d26733f5e986ad229b8391370fd40be0c2cc985e2e795da09b31ba1ac451b",
    "signer": "0x41Fd0c5C6Ee46Fb99a498db2e7135c69490cB85F",
    "userId": "507333378"
  }
}