Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '8f464b6c46e637b453ebf6771010cd1541d7b46ad71e1160e2c262b41f0b8a16' 
  AND token = '7o2Wej5Siu2QeWux5XHH71L7SWonxZ/N/S/F2R/vfHY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00035

JSON explain

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