{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8be90c5a8ecde7547eb2caa0061a1e3d79a19d38913b2a33bfad1c6b45eeebda",
    "signature": "0xf16cc022ba3d5deca0d6dce86a7d03c3cce6f7ae357972c4702e74afafb7db407cb8034447f14a217807f474d4aeee293031c279e8185f80d30d5d62ff8308591c",
    "signer": "0x4fA1a6fC8859240f25d5735DCF911eb46E235e89",
    "userId": "470598044"
  }
}