Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'f804a1c8d9a11bf62f254bf6f6aec4406e3a647fa062a5c42372a46f6fe75f51' 
  AND token = 'SUUVHX+a8Zv2oRehbFtS0uFw7X1H8UFIk2cVwL+K0kk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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