{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb1417a15b6d92024a76f3fb036766da3a317ab6569f58a46309b7496ec0aa0fe",
    "signature": "0x4073b84ab7a08249de33befb0f8b6e1304a4213f1e0f7a69b6e42198c8666180666e1c5637ce990d7d3cf2d23f54fab67d44ab4c3f8cac130097e47c548ca79f1c",
    "signer": "0xe3f12dC3026bFE24Ce238Ed6b31bfc2a76D9dd52",
    "userId": "457976587"
  }
}