{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xaad7f48b7a15110d12021ef28c18fd72f163e0aa756cc933ea77a4fdb1d9e5bc",
    "signature": "0x034832722cd059aee033d082cecd68c2fdad65bbc602c18c40bec421be47f09f75b0e93995cb46d6552024884c8c0f811022838830fa2b90baecd425694124c71b",
    "signer": "0x1277B641ACA9e8A0D379CEa60a32DBd50a76F68c",
    "userId": "989490365"
  }
}