{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "723085841",
    "entityType": "User",
    "nonce": "0xa9dd8e063461960309d96e3ce6441ac466c0e7cd3722e16d670e7df84742a17b",
    "signature": "0x9917fb295c91616c64d4525a2ec1a51ff67023552fa274495d41d2df2f4d06424e5a1c6b2fe80748118871ffba02d8f4278258b1017b5e920f72de2da3ae2e8e1c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}