Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '1f2a6fa98c9757ce81962cf77d4c7d5371cf118870b627f861a552431d119e66' 
  AND token = 'lERFfSH4PpH1U+Nos99+0jsdwyexXLH9VxivCcCRCSc=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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