{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "346034",
    "entityType": "User",
    "nonce": "0x5952670a2367499fc01969113e634f7a2c0568d4de7670845ccb134a2f116cfe",
    "signature": "0x25074a16ee29be6f4585cd062d483a46baf5146f10c8582f2dfde955b6b713b846af13388f51e283b9666265a66dd8e194387612ea76b45b34afe65460e70ef81b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}