{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157194",
    "entityType": "User",
    "nonce": "0x7cfc111f2fcc3326b55fdd9af878450704ca0ee9d2e217827d9155b139f53fd5",
    "signature": "0x783aafa7fecd496f4b466613a2f7695eeea4c93888ab7bb11e7cd62162dbec7b3aad9edf2ec212bdd46d7fb3c8cb12d6eee173dbf73a1c1e8609225ca75eebf61b",
    "signer": "0x1fdb8b8d658C971e3AA77c0438DE87276B080c05",
    "userId": "821421961"
  }
}