Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '32b3e20727bb58e6495768a5edb492415e4e86fd5a0653b425298234b543410d' 
  AND token = 'AE0tLsx0maCKui+JUHErtc04M97bWNMElkQ1Fr9UZdE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00041

JSON explain

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