Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1695c4f1bb744b5049267a2cf9894d7d26394c73f85b7db07a7489d797b1eb04' 
  AND token = 'Gh12JrzXr9soIY6Nq1Ln6w31tAESjE9J99UiRdNwjl4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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