{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "50962",
    "entityType": "User",
    "nonce": "0x21101f71814f8d247db1377394e14a9855adabdb6bf58ef7fce8a48284a4a661",
    "signature": "0xf90e2e3bbb3f0de80ebcf84c1834d503647d44dfd62792b3c1cdba2d1ee401a26b433fcd07cd08939b1eda67bf7becb4be782b481fb52255281c7acf38a640dd1c",
    "signer": "0x98591a180A20DF036EB2C9D2c24B449E65939Df5",
    "userId": "338604526"
  }
}