{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "105773",
    "entityType": "User",
    "nonce": "0xc7f7ba894a460edbd3807c758656081b76e04e37e9756af55d0658aa207937c6",
    "signature": "0xf7708c4cbcce7577bbaaa8df13217cbfbc6aeda381ec53393e3f3a457630c3180846882353717b87ea3ec152fa82c1b5e17bfdca8f14d9f05f7d58f7dc894dc71c",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}