Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'ab2d87aea15d69100f77b895e3ed65ac0edaafa4859d020dbaea253d29e87084' 
  AND token = '7uOq5j/qYkWF15J7slUoz7b9Axo+H3KY6/oc52e2jyo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00026

JSON explain

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