Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '0e9d3301bfd1184414822cc186fc366294a8ecace7c062f4d1c2e6e445494729' 
  AND token = 'eVIMemEF/7npGzH76KooHqZSVbtn8eyAjTkEzr4CAYI=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00021

JSON explain

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