{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "164551",
    "entityType": "User",
    "nonce": "0x67c65dbc50cef1e124c666b8ea69919389f55146356579e007193a71b1bab936",
    "signature": "0x3f63f1e9084c9ebfda24766772a8b43aefdbefe4636c2c8df000a28983f6a9216bc78b2382083bbeb98f6c2a71085528db23105aef9c1d00a6f518547216cdea1c",
    "signer": "0x3dCA4F786a1e64C4c6ea46dbB67Aa793bA7Db05D",
    "userId": "19387738"
  }
}