{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xc17be407d81fc081c051011efd2009014fab49be2c650e2b6dc2e98e22a48c01",
    "signature": "0xb8106ae16ad13e6e6bd69a4b8919e27aacccfefa91871c8c737cd582d5de096d33f99d28c192c47ac90046d91ce0f68aa06b72d1b965f82938e0f7320dbbcc7d1b",
    "signer": "0x5fF1FAa027241cb6747DA3cD69a38Ee0b8F850b3",
    "userId": "781859305"
  }
}