Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '46571a089dd8af9f5dc29421c0f64515ac5807f2ee199b88801580d79a9be4c8' 
  AND token = 'I0y00iOdDv8jrkXx7X9QCTypTBeQk9af0v/cm+Tdt0Q=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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