{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "405466",
    "entityType": "User",
    "nonce": "0x5000064b4a3c98abe01e09a82237ffce4bd5da0aebfc28c56fc606d97adbe167",
    "signature": "0x5747cb8c165d29b6b12455f00ce76e6f60fe5b1cbfaa28fd40b411d93e789bfc333eab0f697fe38934c4964ddb35b492d1fba99b954177042debbaac5778ad1d1c",
    "signer": "0x9b1a9d02F213F5C768F11FC832194b5cB665E056",
    "userId": "418702748"
  }
}