Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd4ebdb30cefe20f7628a3c64d8f2fb65264ef46ef7118fd4c780a441ef64dffb' 
  AND token = '3heGg5w6wCzYO1J8TqK3zSbVbTc6Kw6v0SUuuHpMibc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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