Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '09126c1c380510a462913c1914838f830ea8a26ffe29b01b9ee6bdae7787d8fe' 
  AND token = 'vCgF98Gt5N1bv0Lw10LE8StiIKuN3gZDPmVWHPb6JjM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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