{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "393824817",
    "entityType": "User",
    "nonce": "0x26ffcf6d0e30a11c34a69241d12c52b8f0406f50d45940b65c606699c7cc3276",
    "signature": "0xdf1308b680f9213d81f8b628b353e8eaa0e1b260c129690d554209107e579c7a253667a217e4416239c8083999c1ad2687648532ed5f8c78fa47bd6a66adc2861c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}