{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd09d7b5743f25f9449458b5df6c723527d9021a8ded8f390523b35f6d6c1dfc4",
    "signature": "0xcbef85b64eb136153b93f484704e3fdecfa2785e6564dc69bf54eb115c7ce610298338d94293f90ea4e6499b7a4930075040e92ffb93e164449e178e87ebf7fc1b",
    "signer": "0xFc3B4795c6E530Fe6F1e0F17dCe23E1525ac9775",
    "userId": "690668232"
  }
}