Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'e26106444d6c373498876cf37f7ee2131f95c344653d49567250c0b063f8eb3b' 
  AND token = 'uNtgaz2/m6rRKE/EJWwCCaKB4T5kBrIS4X3i16FgMGg=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00034

JSON explain

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