Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '603da97b99734de0158b5725b05020f9bf705b78d0f45c9131cd48af52f8074f' 
  AND token = 'J2XR7pURRmhUdbRFUhn6r0VCJez4wt2Orxv6zYtjwSk=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}