{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "219311",
    "entityType": "User",
    "nonce": "0xf396a9f4c66559fb0986cbf9b24daf39eb8b7f9ccfc3017a2491cba4f76c5523",
    "signature": "0x3bfc90f9a3292b20617fe7bbb7b92df64f020944bcf3176e0d3089ce40bd25ba737c706b7c8c30f3b0597936fd913ab5ffd974b33a750d96463a2619f1a4e5381b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}