{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1212434",
    "entityType": "User",
    "nonce": "0x5de75f2ffd357b441084035886e69b7e7a348201d7f94a84c4c3cf28af4328fd",
    "signature": "0x601a27c448830687a9e91305e5f5dd32d77800a5db4821e819764d64f635d66840464da3bc9d03215b02096e84480666d89a363cfaa098f3f30e3e0d774f6be11c",
    "signer": "0x8b77d47DA28d313A2824468913d2f44F9a5B7b75",
    "userId": "808833626"
  }
}