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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '2aeb81dcfb58e66dfa90269cb28a694f25096d1617e39721d2df9fb1671f280e' 
  AND token = 'W3f9NuCU0n7I2Lk/qCQ2c3LM+0V9PpKVoEkipSSL0u0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}