{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8af20b19dd6acf4a9e6419278ba9e84f92c0b51054734802bdfc833a656da973",
    "signature": "0xa969a6fd9e9b337fa77ef943fbf4060509d420caf33228c29252dfbfaaa0b4f47b8c37fdbcaf5ed6102b36287f802c6fb216880163ab6a639bfd6fbf3b4f738b1b",
    "signer": "0x3Ec9E017e31a38A18602E735a761076100861F7b",
    "userId": "910895194"
  }
}