Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5037ad4635ff7d89071244897c400f8c7a90f0bb43d44a1593568a41f7207429' 
  AND token = 'SrEFS7Pfh6utd4VaFAhTgKIUfn8q52WSd/WLa99IS4c=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00165

JSON explain

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