Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4b5f1faecaa81722ff8373c006bd10ac8716d23bf433bea57cd6cfcec9c81416' 
  AND token = 'JPG24etBDocjmCeXklvD9Kur87H9WAYSfiaKg2oVWC0=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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