Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'cc5685b986ad1901969d443a244e86d301902716f5f87a51b9a1434ca6f64ade' 
  AND token = 'ijVi2U5xSKl2BkMdd91Auu6RV3GGTdXxGXL8xXT63ys=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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