{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1104",
    "entityType": "User",
    "nonce": "0x29624b06366a054717c6f2440f7ab7a0a9384243537f23ec1bb09716f27a41ed",
    "signature": "0x5efb674126f635ed25f1312e6babdbdb7a2aae2fe5d12aa3e8435dfbca08a10944aff5c78d1df0b738c28a58efdee087c60aa63aa558e0261490540b4d07487a1b",
    "signer": "0xe3e4e5551A64fEaDc2a8518b64fE2fF7EB6aB2A6",
    "userId": "502392634"
  }
}