{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x68e94bd108acda9a20ae9de8c7f88bddeffb7f601a2762f4c49b31252ec9ae14",
    "signature": "0x8c130b395869c599d69df84c8b8a1faa85e7c95d379da626f0a4e579af0d64ec20b7cb4a32ff81910b4e67c5487128f3a7d2d5611d0684de4b4542f06d0fa9e81c",
    "signer": "0xA4B0C175920655a227577F59B8b7d134256B5386",
    "userId": "450369035"
  }
}