{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "5101",
    "entityType": "User",
    "nonce": "0x8503e337baca0ca508c3bf53bebe69476ecdf45cb608e84cfa78b2bd1b2b6c05",
    "signature": "0x067b76c9b78a8327a5b6307ceb9fcb295306791909b21d474806e842ae877a9914153eb38965da1e95252cef58f0b521921c668ff9038bbe68c9dfb545df0a211c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}