{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2044",
    "entityType": "User",
    "nonce": "0x2060e91145da4b456dba8cab90a2356ca12259ba9e0f3dbe3bdb0e98058b59f6",
    "signature": "0xf77eb57816db9b1131f7cf789ecac7f45660c5bcdc127d5037cf8be70940102d3cb36f9bdf7b68d74b6eb3cfa17876c7e88dfd17d354f45bfc3c3dccb70b0e231b",
    "signer": "0xF5a4f8fCD6d35F4AF037631D92a627E42c6B9BF1",
    "userId": "713783640"
  }
}