Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '479c744e7b1e54b12decfedc8b5b404529d0553159087b66654045efcfce1950' 
  AND token = 'vPpHYeb911cvlmL9w03O0sgCXKEYGoqJzo2XDWKQmdo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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