{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x9870f844529712212d831064ca11ef97065255879582f8cf94b718feb2c3918b",
    "signature": "0xa6b64245ff237308d9444620779b242d5f75559bc33ca409bd621be06ecc47166d862ab44c0e42f3f9c8bea164ab0db0f79eaed9f0f530d8fc71880f456bc36e1b",
    "signer": "0x4b1189bC8Aee2eb6CeD0578e2f69157Ae9DeC090",
    "userId": "67696412"
  }
}