{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2005440",
    "entityType": "User",
    "nonce": "0x445bf2deb5cfc6762901d0bdceab892b26656f08f5b9e36a3e7343726def6ab7",
    "signature": "0x256faa46db43fba1e53b8813781b7c9aa8b97549a860a9a00f7700a7cb6b559351a9293e9fd9aadd080199372c1488f1f6ddb429c9360a6b9dc2e7b48ee1255f1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}