{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1385998271",
    "entityType": "Event",
    "nonce": "0x39357f7f228f355a54320b08698470796419dbd790e612821c09635e9da12d79",
    "signature": "0x5424872c059ac1b70c7bc070d1446fa5458dc93d751a8e5117e6b4b3f655b28e198759163f4601fc3e5fe9836d3f15aa4db1e7a9c9fec5d65f68f7b3e266184e1c",
    "signer": "0x7D273271690538cF855E5b3002A0dD8c154bB060",
    "userId": "1"
  }
}