Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c008acee1d35972957aef0870b45c1a5a39b8a1e2359c7d15de0dbc660fc16c5' 
  AND token = 'GibbpWgfUcbpRdp0i63q9enIL9NSGOtevK3Gzpu23Ho=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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