{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "238687",
    "entityType": "User",
    "nonce": "0x830a131269a11824655bc033af8d568f9caad78a796fb13541bb89c66511cb9c",
    "signature": "0x9e6f767dfbe6c6f8000fcc12cd24d06ab71bf8f47373186e30c4bd2f00eeb0d441d8bcefc57cdbd88d16fd194990d89cbe9c2562d84fadc577bf4607ed83c63f1b",
    "signer": "0x64888D03Da93901A9ce859716E8D5E9ECCcD9DFe",
    "userId": "169107670"
  }
}