Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '221106772a693a27cee92a53de976f6f6562e9755636bcfe41a319a6a1986af3' 
  AND token = '/hf+xf4Co87i3Sw9XYplWKrl1iy36wxruD7r0ydf+WI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00023

JSON explain

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