{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x0b281eae4b15eb95ab2e79689c8011fdc1c841dc60afcdbfc555fe360a54e2b8",
    "signature": "0x17a5a519cfe0fb7368ae558e9c3cf4864b2868493b69a2b1ca6f8f4cf07924ab1fc21df7dbc1042a73397046fb192a62ee80521a5d9f591bb8e9a645d707a56e1c",
    "signer": "0x325ebB0cc2Cd4233EDBB752A7855922D0C417bca",
    "userId": "742356608"
  }
}