Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f9d048b22de21dce7717f5c0f188ee602137593296245e17f4ce904dd4345965' 
  AND token = 'Dr+iXQFtb5hk2C7xV5+c3v1ry3PmOgjbYSlQyW0rJ4o=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00043

JSON explain

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