Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '1d69d5a26ab7f1c690e33afaf5aabc17c6d44efe6b1180be76f1ccc6412cf5bd' 
  AND token = 'ZI0Pq82wxtuYLufn+9WMvYLf7/AU00tep+KJ3hmQSAE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00036

JSON explain

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