{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "383103",
    "entityType": "User",
    "nonce": "0x22473a69eea6625495cf1c1ffde2de187ad9caab21fdda394872a12748b4e6c9",
    "signature": "0xabbebe1f466ec7687dfa089c33464dcbcbf2d41fc3d0e174ff7bf00a55a80d644d929cf992a340331cc50609f9795635ab347c4652e5c0469c709f6a4693a7181b",
    "signer": "0xfEf199273dc1B7112aA0D32cc0DbF797aC6EAfE5",
    "userId": "198179849"
  }
}