{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "337206",
    "entityType": "User",
    "nonce": "0xc09a1992621f932a0cceb74484060491befab1d245cb61bcbc48275066e04110",
    "signature": "0x83595e481e9603f048fbbc7505f832a6ceccba8da5b4f2d2eca5bacca30969b46d2729b253c5194c226478c758d00a7fb8de8056d0a8ebab3a81b99d529a98ee1b",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}