{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "278611500",
    "entityType": "User",
    "nonce": "0x718b73af88becfeb774f4a98d7ef59bb3cc3174ed6d38162b06de75439b02602",
    "signature": "0x52457722a269c0003542145dc1844706df55b0b3f51fc122e977014bded150571128b5111658239c92a21de65dec30ca05d7991c4c9f21875b1080c3a0d358a21b",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}