Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = 'ed7f38bd38f14f37a66ccf05354ab61c2db155fba193ffcfa3494d38da461859' 
  AND token = 'nGjD7ib7ftcnCapsLZ/0/DvSq2EhpB4HHPNPX1OnMio=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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