Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'cbdf2e7487ece74262b7e5a2fd0e7ead49c9abc9413e82f552398716aa0af896' 
  AND token = '4zLO9QzRTUtQLCaLIyat9Djkm3ymuTMm8WdiMaJ4CnY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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