Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '63452fdce82fd20dcce2f04c8b4f36e957d879335bea8096382adee43202ecad' 
  AND token = 'wQ4bQk3DrdOHxfw/DlgGYGrY3Rv1hEJD27HCp9r4wUQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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