{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "348198680",
    "entityType": "User",
    "nonce": "0xce31709809c0c458bdc977c0af14dfc417b64b70f021966751b97ef674ce8fa3",
    "signature": "0x85fc7fdd1cd7e96333c1e94d5b12764a5e0a9f7f03d0f9333d80e2df6c084abe1ba5c1ff4428d700aae39a6f0b7baa3ff47244e8a713739db6e4f487d7291e361c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}