Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c6e913ca56697f7849f861718f1555a6f86e6f195bb26a9e6941b0e9c1711dfa' 
  AND token = 'GPSFuNa2FO0Ah6LtzuGOM/k+Yk/KW6i5GQquQZw/nY8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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