{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x7a14e2c75f8593cc3525577f9f7156240f6034800959bcf28c0d91a89ebebd94",
    "signature": "0x96fa35430bab60c536557caca1bcfee190cdcba63c080e28ef3a673ddf1e7b60470696b89e5e87546b6e8602ab6ff6281f8ea75b522bbbb82d76deafeed41e511b",
    "signer": "0x883fa730a7cbE72C38fF2f171ef282394B714D19",
    "userId": "27346972"
  }
}