{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x66026cc04f982433a983c997b40fe31f9c060ec4cc1b527facb59443c3cf4845",
    "signature": "0xbbdc396270a10c4c0933b58da12b975d8d130642cd2dccf3aa1c75656bac6cfa56cddd73535085826896b18cb46321e33b2e4596213e7b050548bf8e48a275791b",
    "signer": "0x5460753F7904f70Aa8a737ce24BE1dA1B70146C6",
    "userId": "823080489"
  }
}