Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '06342e69d33b94ea8a020b9b2a7860c8aae305a2ddaad0a365200a5f42971104' 
  AND token = 'bH7m4T1/OG+Yl3fdVG03wMkXu80OCMB5ltCEyty/yOo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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