Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '6d09e0156c90c2e66f2027e2818358829ace7e8b5985726eade7f6fa66269a6f' 
  AND token = '2ddG4hR0ilLRX/P2bfjgpFgS0U3Ic97CdmzGRz6tgrU=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00032

JSON explain

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