{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x581caaf1b684b5e442bb09b4ecaadeea96aec631b42dc712379918c9408b8024",
    "signature": "0x80d6466b91cd41fa0e15a30b178073a206057f712e27ee0f3f5d6b0b18dfb65c617763a78a45bc84e886f5a922c3faaca97158ab6d445fe07b45db4e94c1c7521b",
    "signer": "0xA7E5BD3843afdfb29E5fE7755133f0D623275835",
    "userId": "536216917"
  }
}