Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'ba167a1c3bb5655550d0244a5e8a8c1e334f0796153263a053b26cc361ec8d63' 
  AND token = 'LIKVFcCCYUEToY4msaAjn3g3ruSHTOy3xgLdAxr6nDg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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