{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1688102",
    "entityType": "User",
    "nonce": "0x43195ad1b2a63f8c7d8c86815cfa07e081698ed468d9a2c3be96c5b69a73eeab",
    "signature": "0xbab9fa8a96e1bfa37833dd7a473d586cdf8b6e35b7489daed1c27392392d06fd28a4c023261b70f785c303e54caf03f8fd55feb08524528f7ac8947fd521a3571c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}