{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "981147337",
    "entityType": "User",
    "nonce": "0x3401f6b0fceaea0784f36089bdb2014462c1899411f369e6c7742972d7c8a06e",
    "signature": "0x1684b04834992490509765bc1d7afba00bf2fd673f803c55cffe7bcc9a7c41372f91e309b41b596c04a468149622c87b4793d00e8561b91bb4c34fdf11e5849a1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}