Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '4bb524768bf47f46d3ecf77c02b11630d2fef83e2c0925dd262de7e60f325e7b' 
  AND token = 'Yl7C9lJVkckpxPWx68DkYyscoeJTxz19ccjuldgI534=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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