{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "468275841",
    "entityType": "User",
    "nonce": "0x8c413d2b0588dfffb8997c4ce68c6c449d4b15d4ca4ee7920ca0c8e7e7e8be31",
    "signature": "0x27d2823ab6ac38143ae5fb4c7b12645c46b1b14a8684d4799721691873118ea97d91d46ae5c4c05e8a3035072dd9220daacee5a960943bfeb626b1ef9583e0071b",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}