Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '126b3eb9e8e7e276af8a252fe6c935b2967a87a123784065c5cea0933c41d494' 
  AND token = 'Xc3qtD99UoYhxZjNIT4okXFup8Hg1qpx7r866GvA5ec=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00030

JSON explain

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