{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "540848139",
    "entityType": "User",
    "nonce": "0xf7a70e14e143916f45f25cc233933ac6d8f283091dd992be9e294580aca5b0f7",
    "signature": "0xa5845c317f93e3d05f5452344d971f170c136ac8075da3e297f9781290d8adaa67411050e4d2fb04978dce0471e6a5834335df55c5036b762f104a42537755481b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}