{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x67798c0f2f80ddd00c1ec08a02cb7de43e525bbfbec1dcb3839c7fd428d55f2a",
    "signature": "0xa343d700b03dd983cca7797c61dcf4baa629c8eda398dc2f22326f6550ec83b6100f1387131bfe31807e682dbe46e2dbe3bf45952164b879e78978c2c88463781c",
    "signer": "0xbC1d4212c5ee7b31902Eaa56A119A5610B6bAC2A",
    "userId": "516135902"
  }
}