{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "343346",
    "entityType": "User",
    "nonce": "0x3973f9bd98e51b471b9cd629644306a6319fc6cb43dd3647c260f1a2354f0ced",
    "signature": "0x75ad75521b42029b502e59d09f8c7a59f7973c9ba492f16b2605cc3c6f6ca19812e70f8a4a67c517392106a940fc895ecc1bdf08c665c312b9feed943e83de1e1c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}