{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd0923d0281eaab232abf22f7fa589ad9023e597fa87945bce8ba417bab545553",
    "signature": "0x87a61e1c0daf8427942d252eb3264e829b0d0c5cac732a57331d29a7ffadbca46683c9d847024fa4e95f83ea39155acca3b5a9c5513f3b2352b03c76717766691c",
    "signer": "0x6164d22C5753c6E9f1ec157dDef5A3C606E2f10D",
    "userId": "534038283"
  }
}