{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396558",
    "entityType": "User",
    "nonce": "0x890bc02b1bebe4c2c68c1f4c910f22daf73e81c17199632c241c914f5beab203",
    "signature": "0x1eaddb7306475f733236e4cce532f51fe3fb91860760a933671f69aaf4b4f71d09de6941730008d6d7e572639c8ef789bc3d3b632532a5a1d1bd0516f13ded5a1b",
    "signer": "0x7cb443E1D882339Ce2Db89944ef44929E8E2F578",
    "userId": "343301"
  }
}