{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "456716469",
    "entityType": "User",
    "nonce": "0x8e68b2953b91495e492266e168491d3bf99376416168b74c676bb601e99f38c5",
    "signature": "0xfdefd55388af5d67baeced4905c265648ea29d5fac7092e7dcde5b623d6260aa2be87eb5424a0e0696f3adae53e48afe0a6cd9d2c02f21aa86d82efb02b3ed061c",
    "signer": "0x97eAfE883FbF33a8b75f6f37440caFE5CC452d3f",
    "userId": "849776474"
  }
}