Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '11612f17a67abd94964c48e345e82f8a15282575daa7f36b6434f86483b561a5' 
  AND token = 'fDP8Vef4BRZ8PxxSwPzyFG509brhEGCWS9RwTwH0xRc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00071

JSON explain

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