{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1050",
    "entityType": "User",
    "nonce": "0xac68201beb1fec7e040ac79f7a4355f50cee1812bd228918ed424b336ef4a10a",
    "signature": "0xaff811a56cfe390f32cc0465e62e572ae40be87808b0a8bf569a1ab5e5a3023c6e79ab39dcf2c054243645b89a8b03e12f8f583542ca4b1704c887cca576a4841b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}