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SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '44067407787a18fc4bfd5d49878891f37f8b64c45a17396b27298f25b2cc4412' 
  AND token = 'oGTDghch2gtY6YbwNfaEl6cXgzvfeNsLw6LpWrFKPk4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00039

JSON explain

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