Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '5bab92e29928a247daed335d89b8f3a320f093ac776ba692f49973f095344c0d' 
  AND token = 'ZGhXJ8tY7V/m69bjGtkdqBZta6GtvDFkMu2qoM00ezY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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