{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "87134",
    "entityType": "User",
    "nonce": "0x771390862562eb328b7f97be5ac7846ec785f992ebe650e1a27116fd1c682b35",
    "signature": "0x2174f8ea35266cb91e5a14e41c851a497ace1b1f516e48c7ebea95caff0b35c21d54fcd388eb0f7adc7595075db36f2ac87dc8d2534ec5f4efc0263eb373820e1c",
    "signer": "0xA518C4B4e06db28f7574297648E8B716E0578154",
    "userId": "841029631"
  }
}