Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4f6f8b52bfc71b62798e000060a8e294a874151794ebc9b78783d2866222dd59' 
  AND token = 'EUfg+Mu3gqhmUCKLJE/7Mbx8IcaGx5jj12sL3rU0xGc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00033

JSON explain

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