Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '0fdfd3a26f4d608e8454207eb886b7da0547dd784be93e4a20b152c15ab39722' 
  AND token = 'qOgM2tf9GPQDnX8LL4PM90IwTYgdB1eyLHMxkTvFUR8=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00022

JSON explain

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