{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2dbd048fc2bcd80c47ba63f1d7b8526783046716198f0787912211a33a26a9d8",
    "signature": "0x38b15a654b89ae31d294a570793a0b0ad2ec97eac7d24e2cadef4074b7a73f4507cb183890df88d8086be0daf2136581ed98a1e98d1400c1acaf42e2f2cb766d1b",
    "signer": "0x63d394E88B78FF653F4FCeB0AC74Cf5b064dfC34",
    "userId": "633246973"
  }
}