Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '10b28f24e181c06230d427fd054e4bd24a4a4d3f05023f92439a60e2a35819dc' 
  AND token = 'iF7UgQSA7cROx1CvCo3W/zA7asHIkWSTGXAWe1VoOEM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00059

JSON explain

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