Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'bd1c550a7c6049ce504a66dd2ad0eaec828a6d6fa25532545bf090951b308540' 
  AND token = '/lApSbGJxc5I1LOg0stALDgU7pyb3d2x4OoJ42RheGg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

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