{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2197",
    "entityType": "User",
    "nonce": "0xbbf6fba6472b5b76cbfb5994c190bb65224ce3f299e25cd56637e34b57f4aa90",
    "signature": "0xc13561d44ca198df9b455f64d71c86dc15c24e48fca9ce2b3a3c93e36259154b53f7dff5ccd74bf97b84fb6eeaa1e38947b84fe9e13d8c10c7e6f28141bde0891c",
    "signer": "0xE795526f098824a87a94C79d58a4299b51b20a3c",
    "userId": "837713671"
  }
}