Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '75b60c9090c7503e0598de6b2113ebf9df4890b5d360e074f6cd1e1cc3260ba9' 
  AND token = 'h73Xc38eKBE7akzhoTBI6ZKsQ7nuqkdr5nY2HyFj8Ww=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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