{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8af345b0c165b2418bf2f49edf59dd3bcc949d23c7b68db2dabc8800479f7742",
    "signature": "0xda221971c28e59697c0c597fb438baf4dba60c1c6eee0084ead6354f72a2f6855ed4153621e77238b4c8e468ed144fb470834431913e44be43b2715cb36238171b",
    "signer": "0x2F6Fd48958D32D1A4c1606bAF9534E2Cf9d824f3",
    "userId": "846363730"
  }
}