{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "64159186",
    "entityType": "User",
    "nonce": "0x20618897e62c8a7c9d912cad313792ffd3d024f54808cb4c44cbd4e37409134f",
    "signature": "0x434341df06be83d32de7f28770911f9d565f0e4d0705d7003ac25302b6d83f5772096c246bf1c5f809202de52a168dff9a49bdc28ef32e4d385de8948ec0d31f1b",
    "signer": "0xc00163EC4A1f48C70D0b676b7F5c071142de6C02",
    "userId": "227991193"
  }
}