{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318437",
    "entityType": "User",
    "nonce": "0x4599ff060f677c37368fb42036aab5c180509248530838c388ff5b1ceafdccbe",
    "signature": "0xf9173af53e49cc73799886a96c5ce1bc93bde2c9968f961d8ad79678929ead757740e904ea6be639e8a0c4924910ed1fe208d1fd1c4cf4d79f093a1da35639371c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}