{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "776269",
    "entityType": "User",
    "nonce": "0x7785fce445cd927baa42b568de47f8f272e170b8c2e1f19d0a4067650d459d6b",
    "signature": "0xd73c33a088dfe9509be235cc1fa9a69778461f3c1988c55070d02dbc3625fc2f66341f7746b96ea95bb73d59d60412d50ce635dddd8a26d880ec922ab6c3da451b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}