{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "570472437",
    "entityType": "User",
    "nonce": "0xcf87013a658a55728989656115ca0bade735636a13c2e42c676dcdeb7d4b5ab6",
    "signature": "0xcfae928df35733e4b908f2ad830d99c2e72bc2872a3222dccc4daf1ac04ccce3146005aad792eaac904c1cee4b012aa71b2ddd43d18d2700f5406f82d1e1ce1c1b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}