{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x434d92559aa0b9aa1e2bd704065dde5129e25a3fa68a733be3e9589376d79b90",
    "signature": "0x919fce8c64a8e2c889e98b01393fa7d3907598b7219bf27a7e538222fc662b157a7249ad696040dea4cf0f24624849692523b8e6a310fce02f7c77299ff8e4f01b",
    "signer": "0x78b2B7e701b9EF7AFd8D1aDa8D82b2e90036f645",
    "userId": "529243157"
  }
}