{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906222947",
    "entityType": "User",
    "nonce": "0x4ec242f573a2fc64e331b5a8fe538bf385c919aff9cce872b071afebdab82ad1",
    "signature": "0x450f9d54fb43a39fd94f928851418a4107c8c9fd0ac798bf0e706edbc73bde217066399589b1aca472b41cb281cfd918a9741f5ca6a8eeb46bbc59920a2cc1331c",
    "signer": "0x98591a180A20DF036EB2C9D2c24B449E65939Df5",
    "userId": "338604526"
  }
}