{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x9ad14b5293496ff3dc257b000cf9ead4ea9834062e4d8856d27fe53916157ec8",
    "signature": "0x3584a0e52045100bd66c7207c01ca415e6ce46331100d963ba3878ed5b7d3137644e58065b2ca9bdf44dd0d22c5e0fd812fc39de7bc6c4fff793cb37a501438b1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}