SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '5528b4055f7f3d259a4b944a6cc4125b1f92b6199614988dbc1131f732e11df0' 
  AND token = 'arrvM8AJKYQZ6Gy7xtY3g3l0OvKh9cFotHIyoIkIGVM=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00038

JSON explain

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