{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55875",
    "entityType": "User",
    "nonce": "0xfe349b2ec61ec86da5791849205ae16127d9679dbda1d2b281ea9ceb340761c5",
    "signature": "0xbcc976596c07f8773f63145487e28d0fc51d56643deef0f96579010724e4e5a40184e2f12696da0971e873bd847f5fc4c833edd275b57f439dac821eeebc24b71c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}