{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x18a221992470c7b84305699ed8384d56c444b4000bc6cc7f76f2e4f764affeaf",
    "signature": "0x0a8a29f78262c692680e0ea87b045258b939026a4cb223dcda6b7a2ba24950dd0ec926c46f064870d34c65f24335a489d9f96e3bfb8b49fb6f8049ce2c0eda3c1c",
    "signer": "0xD1B4C6CB17c1c0Ff9096EeAE4B3a71AD6821764E",
    "userId": "410198578"
  }
}