Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '30fb1ae21b2cd67680f4657d8b41898f5ea01cf74535c8e45d7c8873a9689580' 
  AND token = 'GJG0RsJndNQw8wcgTaWly7ZY9Jr05m4PVYfPEsrlBH4=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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