{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "741468",
    "entityType": "User",
    "nonce": "0xc49829f1d52c68bdfb33ae2c12d4117b0c2cd9c393647a8d615f841f839cc3c3",
    "signature": "0x72d44cdb8b410d9f2662643f02d5ae7a37f5dc3afa6c9f3899214f63c71dc872677ad02f021dfb96f36ff45bc05ce73c4ab275339f784619edc8890e4ebcc5bc1c",
    "signer": "0xF4F4BffA09cd1B82D70aEe4E3aFab364555A9F67",
    "userId": "43007244"
  }
}