{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309080",
    "entityType": "User",
    "nonce": "0xabfece74b1c69d7f4acedf4212b3c0039dc5c43b5c65844dad76817b3d90a91c",
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    "signer": "0xD4186490eA39e450cAe5e557A0739c6dD45Fd9Ff",
    "userId": "561643473"
  }
}