{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "388508",
    "entityType": "User",
    "nonce": "0x76f55f4e386799c1c94877c44f93c8afd25df9a2ae6d84d9cede9b49f7f49542",
    "signature": "0x76062900c6d823730b708ac7e2671044ed0a503fcfe0ea17f367de9ad71403cc58c5cb732b3c240ea96ae6f0e5ba6391559c8148bccd09bb5d55bb42fb3086771b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}