{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "815984668",
    "entityType": "User",
    "nonce": "0x1da64dffb689fd3c3cf43225f42dead5c3e496e60c37e9e11372573dbca68e8e",
    "signature": "0x628817766fff8ac5bde3a2c1445dc80620cd62421f238afb82a8402bdc347a5217e578542ffb0e158a3d151339e4224dbad97953b9582ff284fca874e01b78901c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}