{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "83902",
    "entityType": "User",
    "nonce": "0x6f758a55be081c23fcaaeaf03b5e85ef2caf913eb3e03d4c380b2666273dc6c3",
    "signature": "0x2bae1dc46900efc6ad783d6a28b8cb5cffa0d2efb6babbab99f7d0240982fc215e48ca1e5f80070f00e1e709f1b552971070426ffe5cce76c87725cf6bc2f7151c",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}