Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '933cb71426e408e724c90da0f141b6297b167f087d7ea4a66b2795a710afa742' 
  AND token = 'SsQCS+Cs32/AkWOZ9bJK2t9mHpKH7vPIJtKP+uVH7TU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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