{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "81620",
    "entityType": "User",
    "nonce": "0x01b91e68c5944101807d4beabcd705ba18df7418bbbc627dd204841bf657f024",
    "signature": "0x4ac994760d56336ab3611aacd75b6604886bc3c5bdf93e96a8597b07dbb869b727b560188a007cbe3515f358a684f18bf2895e9f70f22591a80e6220451a2a411b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}