Sandbox

SELECT 
  1 
FROM 
  cscart_aprillock_keys 
WHERE 
  key_id = '7d2caf6399408eaf1a7daa5d806421a285ebf5554db0a41391c7207fb3918d88' 
  AND token = '++qePgnVMdnt5PdEMp0+qCXFAz0fho9fy/sYcV8eUgE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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