{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "673489974",
    "entityType": "User",
    "nonce": "0x35078235050f2332f2ae11be42eec9d947f0c5a2b5f90f445694a888926ab4d3",
    "signature": "0x128af459f68ce233c59f010c99b3578392ef32a0cb3eed2fdf2d30f590d917db427090bf53ed7e3512a2137500b1ab917a6ef29566509f15f55bb1aff86141d41b",
    "signer": "0x59765b22C96E88dA578af23E8611d6ca2dcCd7C9",
    "userId": "377610060"
  }
}