{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xcbdd3e4eda2851406218f55dc88b71dae23f9be7f4ae25188c15b7fe59fcacf1",
    "signature": "0xb2efe8ed1bba3eaad6bae8e8e954d8b2249cdd62bbba9420205ce69f0d68626a215ac31fe72f3771f913b85a82136f2086a10a4d3a82438843227835b587315b1b",
    "signer": "0x41Ec47289bee55cdAb1EF3AC41A8D7efaE392061",
    "userId": "606279898"
  }
}