Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '409f3ba569a45d99fa420df095befaed31e147e83392c9d5dee24afb5ec29955' 
  AND token = 'pegDvsYvfHofeu2DqUMP4f7ONCRsLQ10r/ZThEtKrHg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00040

JSON explain

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