{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "90963",
    "entityType": "User",
    "nonce": "0xa454a11a510475852df77e58ca4b279dc9a90c6e3f5a2770db06830b6edea0aa",
    "signature": "0xbe75346ecf5943dd6c2f5a7221cbb91dc9b6af84ce19cdd30ab8dda42740030c48e7df64f6f42e4b4037db935185198b21b75b85dfe8c145564e1cc80dbbfeb51c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}