{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120749",
    "entityType": "User",
    "nonce": "0x9b4af46298420c2375efa4e7ddf87a9379a80cb7588f25ad21b87e73d6d8c8ca",
    "signature": "0xba00e2a0b5756b94507dea0c80fe892bfe2c13f72341d9adb4e9373bf618c3cd7bd502bbd4aef378b8200ac7b9a8b64a41d6bd4d8a2bb47f0c949d8d0a284f781b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}