Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '9205138b9d59c31e39796ec36b91d2a16b4510a0fd8593b5546d70c700ec4426' 
  AND token = 'Pdt/IMSeOmm/DoyrMobdb7Oe43I9xfHca/nXW/kjoKQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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