{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "30263",
    "entityType": "User",
    "nonce": "0x1f48196c142524857fdfe659cd3ae585037f428a98ea988575f57096b9a02de8",
    "signature": "0xf3ccbe9c0e8985a490e2157dfd0d11dd1cbc5ab811456662a0342ae991bab9db00292c592234e9711fc3fae45757c3095278e7efc0ec82338bb6142ff86e70671b",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}