Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '26b66dab7fc6f0a2c639e35bc8d485f10084783ed8e47ed460a5f96cc5adfea5' 
  AND token = 'lO1Es/zJIVS11F5WEnacWMKGK3dTauyxKkcLkai6NtQ=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00037

JSON explain

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