Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'aef85d7786aed726fd480c61d0e398b8e0d8386cb3832bad3eb51e3b1772332c' 
  AND token = 'zx+Tijs2A+Gnl3ypxZmWLTrM4SW3nAUyXrR+Pws+lio=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00028

JSON explain

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