Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '223fec3acfe2ddd8abd2d34cf5a3b0e2bcce420264f3f85fd219f29e57b2152d' 
  AND token = 'oTMf5LcHfU98b8Mvu19eDIg8vbI0XA8Yo7cI0v5XaGQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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