Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '6624f9ccabe98af617989fa0aba89897cb5f2ea70085065deef922ea043c912c' 
  AND token = 'Sagrmr4oyHvnD3A6H89FomGOYO9QLr84Fv4uA2ErnBE=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00031

JSON explain

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