{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1996794",
    "entityType": "User",
    "nonce": "0x9cb2bd94bd1b465baef321c69ba4ad474f9ed157b5f486487d0713f4f6843dfb",
    "signature": "0xd39950e7b059b45287084041f8f8497db418f8139637ac3cb2767401ce4f52ca1e333c23e199b14b89987b9527aaabb1f84e4b1c0669ad2425d04bc7821a67f91b",
    "signer": "0x639B9598C075dEDFE2d8FfB1B5B6ca259D3C425E",
    "userId": "667809204"
  }
}