{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "334539",
    "entityType": "User",
    "nonce": "0x295abcf5eafae73eef8723b81f36a2310a198de7044a4df3fe934a15195ad44f",
    "signature": "0xc571e3b713ce4f34c098bcd988631a2b1a50b85eac3256acd964db26eed2db61694b57af89a9aa1235e042691349995599c28e0c89d0fdfb89450448bb27987c1b",
    "signer": "0xF2c19977A72e7f63bBbD9063748E52c002b22f6b",
    "userId": "957488166"
  }
}