{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "183855",
    "entityType": "User",
    "nonce": "0x90648bfee0d43bfd761fe3a9e004bf2b3a7cc36bee2a69acac86c2574ab30b3a",
    "signature": "0x2c41c8efdfcd74f6c9c1d5315de61ed85d6177ddb3b32609dee53e718e1365ed790bbbbc250cdd9eff8c358bc81ff5a2668a45e9d75c808e757972d8ddca702f1c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}