{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x86191e80e4af1e0ebb12dc089399b90677ecb76a3fc115c7fd5a6f383c2383be",
    "signature": "0xa5f14cf66a723778bbd1fad397e1fecba718aad0ba28f12f37c1425751481e1f2ad999197fb20364bb34718ff0b7895536f75fc81cb2283cd2ba5fd854fc1e731c",
    "signer": "0x63d394E88B78FF653F4FCeB0AC74Cf5b064dfC34",
    "userId": "633246973"
  }
}