{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x71d5db1dc07479eafe45c731bab3f28016781c9e216a8a5bb2f12a33fcba7e97",
    "signature": "0xe50613fba45e032893dd2b1e303828a2c7488226ea0731f4a885c388e0b3b816056f02b348a9a3efdf8ea81b8102f7cd45e282c7c833788eb234dc340b07b0d31b",
    "signer": "0x103a6A7cD5c5298D7155a27A217FF84F677D4694",
    "userId": "33159"
  }
}