Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '62cf34d553790ac0318a8e94c20013e93c72aa0540fb04d302eb109bafce1b28' 
  AND token = 'Y473ah6Rmh0IqaLU9I5lqAiPRSfmM51C4Lm46zn3FcQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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